CHAPTER 17.

MOUNTAINS WHICH SEPARATE THE VALLEYS OF ARAGUA FROM THE LLANOS OF CARACAS. VILLA¹ DE CURA. PARAPARA. LLANOS OR STEPPES. CALABOZO.

The chain of mountains, bordering the lake of Tacarigua towards the south, forms in some sort the northern shore of the great basin of the Llanos or savannahs of Caracas. To descend² from the valleys of Aragua into these savannahs, it is necessary to cross the mountains of Guigue and of Tucutunemo. From a peopled country embellished³ by cultivation⁴, we plunge⁵ into a vast solitude⁶. Accustomed to the aspect of rocks, and to the shade of valleys, the traveller beholds⁸ with astonishment⁹ these savannahs without trees, these immense plains, which seem to ascend¹⁰ to the horizon.

Before I trace the scenery of the Llanos, or of the region of pasturage, I will briefly¹² describe the road we took from Nueva Valencia, by Villa de Cura and San Juan, to the little village of Ortiz, at the entrance of the steppes. We left the valleys of Aragua on the 6th of March before sunrise. We passed over a plain richly cultivated, keeping along the south-west side of the lake of Valencia, and crossing the ground left uncovered by the waters of the lake. We were never weary of admiring the fertility of the soil, covered with calabashes, water-melons, and plantains. The rising of the sun was announced by the distant noise of the howling monkeys. Approaching a group of trees, which rise in the midst of the plain, between those parts which were anciently the islets of Don Pedro and La Negra, we saw numerous bands of araguatos moving as in procession and very slowly, from one tree to another. A male was followed by a great number of females; several of the latter carrying their young on their shoulders. The howling monkeys, which live in society in different parts of America, everywhere resemble each other in their manners, though the species are not always the same. The uniformity with which the araguatos* perform their movements is extremely striking. Whenever the branches of neighbouring trees do not touch each other, the male who leads the party suspends himself by the callous¹⁴ and prehensile¹⁵ part of his tail; and, letting fall the rest of his body, swings himself till in one of his oscillations he reaches the neighbouring branch. The whole file performs the same movements on the same spot. It is almost superfluous¹⁶ to add how dubious¹⁷ is the assertion of Ulloa, and so many otherwise well-informed travellers, according to whom, the marimondos,* the araguatos, and other monkeys with a prehensile tail, form a sort of chain, in order to reach the opposite side of a river.* We had opportunities, during five years, of observing thousands of these animals; and for this very reason we place no confidence in statements possibly invented by the Europeans themselves, though repeated by the Indians of the Missions, as if they had been transmitted to them by their fathers. Man, the most remote from civilization, enjoys the astonishment he excites in recounting the marvels¹⁹ of his country. He says he has seen what he imagines may have been seen by others. Every savage²⁰ is a hunter, and the stories of hunters borrow from the imagination in proportion as the animals, of which they boast the artifices²¹, are endowed with a high degree of intelligence. Hence arise the fictions of which foxes, monkeys, crows, and the condor²² of the Andes, have been the subjects in both hemispheres.

[* Simia ursina.]

[* Simia belzebuth.]

[* Ulloa has not hesitated to represent in an engraving²³ this extraordinary feat²⁴ of the monkeys with a prehensile tail. — See Viage a la America Meridional, Madrid 1748.]

The araguatos are accused of sometimes abandoning their young, that they may be lighter²⁵ for flight when pursued by the Indian hunters. It is said that mothers have been seen removing their young from their shoulders, and throwing them down to the foot of the tree. I am inclined to believe that a movement merely accidental has been mistaken for one premeditated. The Indians have a dislike and a predilection²⁷ for certain races of monkeys; they love the viuditas, the titis, and generally all the little sagoins; while the araguatos, on account of their mournful aspect, and their uniform howling, are at once detested²⁸ and abused. In reflecting on the causes that may facilitate the propagation of sound in the air during the night, I thought it important to determine with precision the distance at which, especially in damp and stormy weather, the howling of a band of araguatos is heard. I believe I obtained proof of its being distinguished²⁹ at eight hundred toises distance. The monkeys which are furnished with four hands cannot make excursions in the Llanos; and it is easy, amidst vast plains covered with grass, to recognize a solitary³⁰ group of trees, whence the noise proceeds, and which is inhabited by howling monkeys. Now, by approaching or withdrawing from this group of trees, the maximum of the distance may be measured, at which the howling is heard. These distances appeared to me sometimes one-third greater during the night, especially when the weather was cloudy, very hot, and humid.

The Indians pretend that when the araguatos fill the forests with their howling, there is always one that chaunts as leader of the chorus. The observation is pretty accurate. During a long interval³¹ one solitary and strong voice is generally distinguished, till its place is taken by another voice of a different pitch. We may observe from time to time the same instinct of imitation among frogs, and almost all animals which live together and exert their voices in union. The Missionaries³² further assert, that, when a female among the araguatos is on the point of bringing forth³³, the choir³⁴ suspends its howlings till the moment of the birth of the young. I could not myself judge of the accuracy of this assertion; but I do not believe it to be entirely³⁵ unfounded. I have observed that, when an extraordinary incident, the moans for instance of a wounded araguato, fixed³⁶ the attention of the band, the howlings were for some minutes suspended. Our guides assured us gravely, that, to cure an asthma³⁸, it is sufficient to drink out of the bony drum of the hyoidal bone of the araguato. This animal having so extraordinary a volume of voice, it is supposed that its larynx must necessarily impart to the water poured into it the virtue³⁹ of curing affections of the lungs. Such is the science of the vulgar, which sometimes resembles that of the ancients.

We passed the night at the village of Guigue, the latitude⁴⁰ of which I found by observations of Canopus to be 10° 4′ 11″. The village, surrounded with the richest cultivation, is only a thousand toises distant from the lake of Tacarigua. We lodged⁴¹ with an old sergeant⁴², a native of Murcia, a man of a very original character. To prove to us that he had studied among the Jesuits, he recited the history of the creation of the world in Latin. He knew the names of Augustus, Tiberius, and Diocletian; and while enjoying the agreeable coolness of the nights in an enclosure planted with bananas, he employed himself in reading all that related to the courts of the Roman emperors. He inquired of us with earnestness for a remedy for the gout, from which he suffered severely⁴³. “I know,” said he, “a Zambo of Valencia, a famous curioso, who could cure me; but the Zambo would expect to be treated with attentions which I cannot pay to a man of his colour, and I prefer remaining as I am.”

On leaving Guigue we began to ascend the chain of mountains, extending on the south of the lake towards Guacimo and La Palma. From the top of a table-land, at three hundred and twenty toises of elevation⁴⁴, we saw for the last time the valleys of Aragua. The gneiss appeared uncovered, presenting the same direction of strata⁴⁵, and the same dip towards the north-west. Veins⁴⁶ of quartz⁴⁷, that traverse the gneiss, are auriferous; and hence the neighbouring ravine bears the name of Quebrada del Oro. We heard with surprise at every step the name of “ravine of gold,” in a country where only one single mine of copper⁴⁸ is wrought⁴⁹. We travelled five leagues to the village of Maria Magdalena, and two leagues more to the Villa de Cura. It was Sunday, and at the village of Maria Magdalena the inhabitants were assembled before the church. They wanted to force our muleteers to stop and hear mass. We resolved to remain; but, after a long altercation⁵⁰, the muleteers pursued their way. I may observe, that this is the only dispute in which we became engaged from such a cause. Very erroneous ideas are formed in Europe of the intolerance, and even of the religious fervour of the Spanish colonists⁵².

San Luis de Cura, or, as it is commonly called, the Villa de Cura, lies in a very barren valley, running north-west and south-east, and elevated, according to my barometrical⁵⁴ observations, two hundred and sixty-six toises above the level of the ocean. The country, with the exception of some fruit-trees, is almost destitute⁵⁵ of vegetation. The dryness of the plateau is the greater, because (and this circumstance is rather extraordinary in a country of primitive⁵⁶ rocks) several rivers lose themselves in crevices⁵⁷ in the ground. The Rio de Las Minas, north of the Villa de Cura, is lost in a rock, again appears, and then is ingulphed anew without reaching the lake of Valencia, towards which it flows. Cura resembles a village more than a town. We lodged with a family who had excited the resentment⁵⁸ of government during the revolution at Caracas in 1797. One of the sons, after having languished⁵⁹ in a dungeon⁶¹, had been sent to the Havannah, to be imprisoned⁶² in a strong fortress⁶³. With what joy his mother heard that after our return from the Orinoco, we should visit the Havannah! She entrusted⁶⁴ me with five piastres, “the whole fruit of her savings⁶⁵.” I earnestly wished to return them to her; but I feared to wound her delicacy⁶⁶, and give pain to a mother, who felt a pleasure in the privations she imposed on herself.

All the society of the town was assembled in the evening, to admire in a magic lantern views of the great capitals of Europe. We were shown the palace of the Tuileries, and the statue of the Elector at Berlin.

An apothecary⁶⁷ who had been ruined by an unhappy propensity⁶⁸ for working mines, accompanied us in our excursion to the Serro de Chacao, very rich in auriferous pyrites. We continued to descend the southern declivity⁶⁹ of the Cordillera of the coast, in which the plains of Aragua form a longitudinal valley. We passed a part of the night of the 11th of March at the village of San Juan, remarkable⁷⁰ for its thermal⁷¹ waters, and the singular form of two neighbouring mountains, called the Morros of San Juan. They form slender peaks, which rise from a wall of rocks with a very extensive base. The wall is perpendicular⁷², and resembles the Devil’s Wall, which surrounds a part of the group of mountains in the Hartz.* These peaks, when seen from afar in the Llanos, strike the imagination of the inhabitants of the plain, who are not accustomed to the least unequal ground, and the height of the peaks is singularly exaggerated by them. They were described to us as being in the middle of the steppes (which they in reality bound on the north) far beyond a range of hills called La Galera. Judging from angles taken at the distance of two miles, these hills are scarcely more than a hundred and fifty-six toises higher than the village of San Juan, and three hundred and fifty toises above the level of the Llanos. The thermal waters glide⁷³ out at the foot of these hills, which are formed of transition-limestone⁷⁴. The waters are impregnated with sulphuretted hydrogen, like those of Mariara, and form a little pool or lagoon⁷⁵, in which the thermometer rose only to 31.3°. I found, on the night of the 9th of March, by very satisfactory observations of the stars, the latitude of Villa de Cura to be 10° 2′ 47″.

[* Die Teufels Mauer near Wernigerode in Germany.]

The Villa de Cura is celebrated⁷⁶ in the country for the miracles of an image of the Virgin⁷⁷, known by the name of Nuestra Senora de los Valencianos. This image was found in a ravine by an Indian, about the middle of the eighteenth century, when it became the object of a contest between the towns of Cura and San Sebastian de los Reyes. The vicars of the latter town asserting that the Virgin had made her first appearance on the territory of their parish, the Bishop⁷⁸ of Caracas, in order to put an end to the scandal of this long dispute, caused the image to be placed in the archives of his bishopric, and kept it thirty years under seal. It was not restored to the inhabitants of Cura till 1802.

After having bathed in the cool and limpid⁷⁹ water of the little river of San Juan, the bottom of which is of basaltic grunstein, we continued our journey at two in the morning, by Ortiz and Parapara, to the Mesa de Paja. The road to the Llanos being at that time infested⁸⁰ with robbers, several travellers joined us so as to form a sort of caravan⁸¹. We proceeded down hill during six or seven hours; and we skirted the Cerro de Flores, near which the road turns off, leading to the great village of San Jose de Tisnao. We passed the farms of Luque and Juncalito, to enter the valleys which, on account of the bad road, and the blue colour of the slates⁸³, bear the names of Malpaso and Piedras Azules.

This ground is the ancient shore of the great basin of the steppes, and it furnishes an interesting subject of research to the geologist⁸⁴. We there find trap-formations, probably more recent than the veins of diabasis near the town of Caracas, which seem to belong to the rocks of igneous⁸⁶ formation. They are not long and narrow streams as in Auvergne, but large sheets, streams that appear like real strata. The lithoid masses here cover, if we may use the expression, the shore of the ancient interior sea; everything subject to destruction, such as the liquid dejections, and the scoriae filled with bubbles, has been carried away. These phenomena⁸⁷ are particularly worthy⁸⁸ of attention on account of the close affinities⁸⁹ observed between the phonolites and the amygdaloids, which, containing pyroxenes and hornblende-grunsteins, form strata in a transition-slate⁸². The better to convey an idea of the whole situation and superposition of these rocks, we will name the formations as they occur in a profile drawn⁹⁰ from north to south.

We find at first, in the Sierra de Mariara, which belongs to the northern branch of the Cordillera of the coast, a coarse-grained granite⁹¹; then, in the valleys of Aragua, on the borders of the lake, and in the islands, it contains, as in the southern branch of the chain of the coast, gneiss and mica⁹²-slate. These last-named rocks are auriferous in the Quebrada del Oro, near Guigue; and between Villa de Cura and the Morros de San Juan, in the mountain of Chacao. The gold is contained in pyrites, which are found sometimes disseminated⁹³ almost imperceptibly in the whole mass of the gneiss,* and sometimes united in small veins of quartz. Most of the torrents⁹⁴ that traverse the mountains bear along with them grains of gold. The poor inhabitants of Villa de Cura and San Juan have sometimes gained thirty piastres a-day by washing the sand; but most commonly, in spite of their industry, they do not in a week find particles of gold of the value of two piastres. Here, however, as in every place where native gold and auriferous pyrites are disseminated in the rock, or by the destruction of the rocks, are deposited in alluvial⁹⁵ lands, the people conceive the most exaggerated ideas of the metallic⁹⁶ riches of the soil. But the success of the workings, which depends less on the abundance of the ore in a vast space of land than on its accumulation in one point, has not justified⁹⁷ these favourable⁹⁸ prepossessions. The mountain of Chacao, bordered by the ravine of Tucutunemo, rises seven hundred feet above the village of San Juan. It is formed of gneiss, which, especially in the superior strata, passes into mica-slate. We saw the remains⁹⁹ of an ancient mine, known by the name of Real de Santa Barbara. The works were directed to a stratum¹⁰⁰ of cellular¹⁰¹ quartz,* full of polyhedric cavities, mixed with iron-ore, containing auriferous pyrites and small grains of gold, sometimes, it is said, visible to the naked eye. It appears that the gneiss of the Cerro de Chacao also furnishes another metallic deposit, a mixture of copper and silver-ores. This deposit has been the object of works attempted with great ignorance by some Mexican miners under the superintendance of M. Avalo. The gallery* directed to the north-east, is only twenty-five toises long. We there found some fine specimens¹⁰³ of blue carbonated copper mingled¹⁰⁴ with sulphate of barytes and quartz; but we could not ourselves judge whether the ore contained any argentiferous fahlerz, and whether it occurred in a stratum, or, as the apothecary who was our guide asserted, in real veins. This much is certain, that the attempt at working the mine cost more than twelve thousand piastres in two years. It would no doubt have been more prudent¹⁰⁵ to have resumed the works on the auriferous stratum of the Real de Santa Barbara.

[* The four metals, which are found disseminated in the granite rocks, as if they were of contemporaneous formation, are gold, tin, titanium, and cobalt.]

[* This stratum of quartz, and the gneiss in which it is contained, lie hor 8 of the Freyberg compass, and dip 70° to the south-west. At a hundred toises distance from the auriferous quartz, the gneiss resumes its ordinary situation, hor 3 to 4, with 60° dip to the north-west. A few strata of gneiss abound¹⁰⁶ in silvery mica, and contain, instead of garnets, an immense quantity of small octohedrons of pyrites. This silvery gneiss resembles that of the famous mine of Himmelsfurst, in Saxony.]

[* La Cueva de los Mexicanos.]

The zone of gneiss just mentioned is, in the coast-chain from the sea to the Villa de Cura, ten leagues broad. In this great extent of land, gneiss and mica-slate are found exclusively, and they constitute one formation.* Beyond the town of Villa de Cura and the Cerro de Chacao the aspect of the country presents greater geognostic variety. There are still eight leagues of declivity from the table-land of Cura to the entry of the Llanos; and on the southern slope of the mountains of the coast, four different formations of rock cover the gneiss. We shall first give the description of the different strata, without grouping them systematically¹⁰⁷.

[* This formation, which we shall call gneiss-mica-slate, is peculiar¹⁰⁸ to the chain of the coast of Caracas. Five formations must be distinguished, as MM. von Buch and Raumer have so ably demonstrated in their excellent papers on Landeck and the Riesengebirge, namely, granite, granite-gneiss, gneiss, gneiss-mica-slate, and mica-slate. Geologists¹⁰⁹ whose researches have been confined to a small tract¹¹⁰ of land, having confounded these formations which nature has separated in several countries in the most distinct manner, have admitted that the gneiss and mica-slate alternate everywhere in superimposed beds, or furnish insensible transitions from one rock to the other. These transitions and alternating superpositions take place no doubt in formations of granite-gneiss and gneiss-mica-slate; but because these phenomena are observed in one region, it does not follow that in other regions we may not find very distinct circumscribed¹¹¹ formations of granite, gneiss, and mica-slate. The same considerations may be applied¹¹² to the formations of serpentine¹¹³, which are sometimes isolated¹¹⁴, and sometimes belong to the eurite, mica-slate, and grunstein.]

On the south of the Cerro de Chacao, between the ravine of Tucutunemo and Piedras Negras, the gneiss is concealed¹¹⁵ beneath a formation of serpentine, of which the composition varies in the different superimposed strata. Sometimes it is very pure, very homogeneous, of a dusky olive-green, and of a conchoidal fracture: sometimes it is veined, mixed with bluish steatite, of an unequal fracture, and containing spangles of mica. In both these states I could not discover in it either garnets, hornblende, or diallage. Advancing farther to the south (and we always passed over this ground in that direction) the green of the serpentine grows deeper, and feldspar and hornblende are recognised in it: it is difficult to determine whether it passes into diabasis or alternates with it. There is, however, no doubt of its containing veins of copper-ore.* At the foot of this mountain two fine springs gush¹¹⁷ out from the serpentine. Near the village of San Juan, the granular diabasis appears alone uncovered, and takes a greenish black hue¹¹⁸. The feldspar intimately mixed with the mass, may be separated into distinct crystals. The mica is very rare, and there is no quartz. The mass assumes at the surface a yellowish crust like dolerite and basalt.

[* One of these veins, on which two shafts¹¹⁹ have been sunk, was directed hor. 2.1, and dipped 80° east. The strata of the serpentine, where it is stratified with some regularity¹²⁰, run hor. 8, and dip almost perpendicularly¹²¹. I found malachite disseminated in this serpentine, where it passes into grunstein.]

In the midst of this tract of trap-formation, the Morros of San Juan rise like two castles in ruins. They appear linked to the mornes of St. Sebastian, and to La Galera which bounds the Llanos like a rocky wall. The Morros of San Juan are formed of limestone of a crystalline texture¹²²; sometimes very compact, sometimes spongy, of a greenish-grey, shining, composed of small grains, and mixed with scattered¹²³ spangles of mica. This limestone yields a strong effervescence with acids. I could not find in it any vestige¹²⁴ of organized bodies. It contains in subordinate strata, masses of hardened clay of a blackish blue, and carburetted. These masses are fissile, very heavy, and loaded with iron; their streak¹²⁵ is whitish, and they produce no effervescence with acids. They assume at their surface, by their decomposition¹²⁶ in the air, a yellow colour. We seem to recognize in these argillaceous strata a tendency either to the transition-slates, or to the kieselschiefer (schistose jasper), which everywhere characterise the black transition-limestones¹²⁷. When in fragments, they might be taken at first sight for basalt or hornblende.* Another white limestone, compact, and containing some fragments of shells, backs the Morros de San Juan. I could not see the line of junction¹²⁸ of these two limestones, or that of the calcareous formation and the diabasis.

[* I had an opportunity of examining again, with the greatest care, the rocks of San Juan, of Chacao, of Parapara, and of Calabozo, during my stay at Mexico, where, conjointly with M. del Rio, one of the most distinguished pupils of the school of Freyberg, I formed a geognostical collection for the Colegio de Mineria of New Spain.]

The transverse valley which descends¹³⁰ from Piedras Negras and the village of San Juan, towards Parapara and the Llanos, is filled with trap-rocks, displaying close affinity¹³¹ with the formation of green slates, which they cover. Sometimes we seem to see serpentine, sometimes grunstein, and sometimes dolerite and basalt. The arrangement of these problematical masses is not less extraordinary. Between San Juan, Malpaso, and Piedras Azules, they form strata parallel to each other; and dipping regularly northward¹³² at an angle of 40 or 50°, they cover even the green slates in concordant stratification. Lower down, towards Parapara and Ortiz, where the amygdaloids and phonolites are connected with the grunstein, everything assumes a basaltic aspect. Balls of grunstein heaped one upon another, form those rounded cones¹³³, which are found so frequently in the Mittelgebirge in Bohemia, near Bilin, the country of phonolites. The following is the result of my partial observations.

The grunstein, which at first alternated with strata of serpentine, or was connected with that rock by insensible transitions, is seen alone, sometimes in strata considerably¹³⁴ inclined, and sometimes in balls with concentric strata, imbedded in strata of the same substance. It lies, near Malpaso, on green slates, steatitic, mingled with hornblende, destitute of mica and grains of quartz, dipping, like the grunsteins, 45° toward the north, and directed, like them, 75° north-west.

A great sterility¹³⁵ prevails where these green slates predominate, no doubt on account of the magnesia they contain, which (as is proved by the magnesian-limestone of England*) is very hurtful to vegetation. The dip of the green slates continues the same; but by degrees the direction of their strata becomes parallel to the general direction of the primitive rocks of the chain of the coast. At Piedras Azules these slates, mingled with hornblende, cover in concordant stratification a blackish-blue slate, very fissile, and traversed by small veins of quartz. The green slates include some strata of grunstein, and even contain balls of that substance. I nowhere saw the green slates alternate with the black slates of the ravine of Piedras Azules: at the line of junction these two slates appear rather to pass one into the other, the green slates becoming of a pearl-grey in proportion as they lose their hornblende.

[* Magnesian limestone is of a straw-yellow colour, and contains madrepores: it lies beneath red marl, or muriatiferous red sandstone.]

Farther south, towards Parapara and Ortiz, the slates disappear. They are concealed under a trap-formation more varied¹³⁶ in its aspect. The soil becomes more fertile; the rocky masses alternate with strata of clay, which appear to be produced by the decomposition of the grunsteins, the amygdaloids, and the phonolites.

The grunstein, which farther north was less granulous, and passed into serpentine, here assumes a very different character. It contains balls of mandelstein, or amygdaloid, eight or ten inches in diameter. These balls, sometimes a little flattened¹³⁷, are divided into concentric layers: this is the effect of decomposition. Their nucleus¹³⁸ is almost as hard as basalt, and they are intermingled with little cavities, owing to bubbles of gas, filled with green earth, and crystals of pyroxene and mesotype. Their basis is greyish blue, rather soft, and showing small white spots which, by the regular form they present, I should conceive to be decomposed¹³⁹ feldspar. M. von Buch examined with a powerful lens the species we brought. He discovered that each crystal of pyroxene, enveloped¹⁴⁰ in the earthy mass, is separated from it by fissures¹⁴¹ parallel to the sides of the crystal. These fissures seem to be the effect of a contraction¹⁴² which the mass or basis of the mandelstein has undergone. I sometimes saw these balls of mandelstein arranged in strata, and separated from each other by beds of grunstein of ten or fourteen inches thick; sometimes (and this situation is most common) the balls of mandelstein, two or three feet in diameter, are found in heaps, and form little mounts with rounded summits, like spheroidal basalt. The clay which separates these amygdaloid concretions arises from the decomposition of their crust. They acquire by the contact of the air a very thin coating of yellow ochre.

South-west of the village of Parapara rises the little Cerro de Flores, which is discerned from afar in the steppes. Almost at its foot, and in the midst of the mandelstein tract we have just been describing, a porphyritic phonolite, a mass of compact feldspar of a greenish grey, or mountain-green, containing long crystals of vitreous feldspar, appears exposed. It is the real porphyrschiefer of Werner; and it would be difficult to distinguish, in a collection of stones, the phonolite of Parapara from that of Bilin, in Bohemia. It does not, however, here form rocks in grotesque¹⁴³ shapes, but little hills covered with tabular blocks, large plates extremely sonorous¹⁴⁴, translucid on the edges, and wounding the hands when broken.

Such are the successions of rocks, which I described on the spot as I progressively found them, from the lake of Tacarigua to the entrance of the steppes. Few places in Europe display a geological arrangement so well worthy of being studied. We saw there in succession six formations: namely, mica-slate-gneiss, green transition-slate, black transition-limestone, serpentine and grunstein, amygdaloid (with pyroxene), and phonolite.

I must observe, in the first place, that the substance just described under the name of grunstein, in every respect resembles that which forms layers in the mica-slate of Cabo Blanco, and veins near Caracas. It differs only by containing neither quartz, garnets, nor pyrites. The close relations we observed near the Cerro de Chacao, between the grunstein and the serpentine, cannot surprise these geologists who have studied the mountains of Franconia and Silesia. Near Zobtenberg* a serpentine rock alternates also with gabbro. In the district of Glatz the fissures of the gabbro are filled with a steatite of a greenish white colour, and the rock which was long thought to belong to the grunsteins* is a close mixture of feldspar and diallage.

[* Between Tampadel and Silsterwiz.]

[* In the mountains of Bareuth, in Franconia, so abundant in grunstein and serpentine, these formations are not connected together. The serpentine there belongs rather to the schistose hornblende (hornblendschiefer), as in the island of Cuba. Near Guanaxuato, in Mexico, I saw it alternating with syenite. These phenomena of serpentine rocks forming layers in eurite (weisstein), in schistose hornblende, in gabbro, and in syenite, are so much the more remarkable, as the great mass of garnetiferous serpentines¹⁴⁵, which are found in the mountains of gneiss and mica-slate, form little distinct mounts, masses not covered by other formations. It is not the same in the mixtures of serpentine and granulated limestone.]

The grunsteins of Tucutunemo, which we consider as constituting the same formation as the serpentine rock, contain veins of malachite and copper-pyrites. These same metalliferous combinations are found also in Franconia, in the grunsteins of the mountains of Steben and Lichtenberg. With respect to the green slates of Malpaso, which have all the characters of transition-slates, they are identical with those which M. von Buch has so well described, near Schonau, in Silesia. They contain beds of grunstein, like the slates of the mountains of Steben just mentioned.* The black limestone of the Morros de San Juan is also a transition-limestone. It forms perhaps a subordinate stratum in the slates of Malpaso. This situation would be analogous¹⁴⁶ to what is observed in several parts of Switzerland.* The slaty¹⁴⁷ zone, the centre of which is the ravine of Piedras Azules, appears divided into two formations. On some points we think we observe one passing into the other.

[* On advancing into the adit for draining the Friedrich–Wilhelmstollen mine, which I caused to be begun in 1794, near Steben, and which is yet only 340 toises long, there have successively been found, in the transition-slate subordinate strata of pure and porphyritic grunstein, strata, of Lydian stone and ampelite (alaunschiefer), and strata of fine-grained grunstein. All these strata characterise the transition-slates.]

[* For Instance, at the Glyshorn, at the Col de Balme, etc.]

The grunsteins, which begin again to the south of these slates, appear to me to differ little from those found north of the ravine of Piedras Azules. I did not see there any pyroxene; but on the very spot I recognized a number of crystals in the amygdaloid, which appears so strongly linked to the grunstein that they alternate several times.

The geologist may consider his task as fulfilled when he has traced with accuracy the positions of the diverse strata; and has pointed¹⁴⁸ out the analogies traceable between these positions and what has been observed in other countries. But how can he avoid being tempted¹⁰² to go back to the origin of so many different substances, and to inquire how far the dominion¹⁴⁹ of fire has extended in the mountains that bound the great basin of the steppes? In researches on the position of rocks we have generally to complain of not sufficiently¹⁵⁰ perceiving the connection between the masses, which we believe to be superimposed on one another. Here the difficulty seems to arise from the too intimate and too numerous relations observed in rocks that are thought not to belong to the same family.

The phonolite (or leucostine compacte of Cordier) is pretty generally regarded by all who have at once examined burning and extinguished volcanoes, as a flow of lithoid lava¹⁵¹. I found no real basalt or dolerite; but the presence of pyroxene in the amygdaloid of Parapara leaves little doubt of the igneous origin of those spheroidal masses, fissured¹⁵², and full of cavities. Balls of this amygdaloid are enclosed in the grunstein; and this grunstein alternates on one side with a green slate, on the other with the serpentine of Tucutunemo. Here, then, is a connexion sufficiently close established between the phonolites and the green slates, between the pyroxenic amygdaloids and the serpentines containing copper-ores, between volcanic¹⁵³ substances and others that are included under the vague name of transition-traps. All these masses are destitute of quartz like the real trap-porphyries, or volcanic trachytes. This phenomenon is the more remarkable, as the grunsteins which are called primitive almost always contain quartz in Europe. The most general dip of the slates of Piedras Azules, of the grunsteins of Parapara, and of the pyroxenic amygdaloids embedded¹⁵⁴ in strata of grunstein, does not follow the slope of the ground from north to south, but is pretty regular towards the north. The strata incline towards the chain of the coast, as substances which had not been in fusion¹⁵⁵ might be supposed to do. Can we admit that so many alternating rocks, imbedded one in the other, have a common origin? The nature of the phonolites, which are lithoid lavas¹⁵⁶ with a feldspar basis, and the nature of the green slates intermixed with hornblende, oppose this opinion. In this state of things we may choose between two solutions of the problem in question. In one of these solutions the phonolite of the Cerro de Flores is to be regarded as the sole volcanic production of the tract; and we are forced to unite the pyroxenic amygdaloids with the rest of the grunsteins, in one single formation, that which is so common in the transition-mountains of Europe, considered hitherto as not volcanic. In the other solution of the problem, the masses of phonolite, amygdaloid, and grunstein, which are found in the south of the ravine of Piedras Azules, are separated from the grunsteins and serpentine rocks that cover the declivity of the mountains north of the ravine. In the present state of knowledge I find difficulties almost equally great in adopting either of these suppositions; but I have no doubt that, when the real grunsteins (not the hornblende-grunsteins) contained in the gneiss and mica-slates, shall have been more attentively¹⁵⁷ examined in other places; when the basalts (with pyroxene) forming strata in primitive rocks* and the diabases and amygdaloids in the transition mountains, shall have been carefully studied; when the texture of the masses shall have been subjected to a kind of mechanical analysis, and the hornblendes better distinguished from the pyroxenes,* and the grunsteins from the dolerites; a great number of phenomena which now appear isolated and obscure, will be ranged under general laws. The phonolite and other rocks of igneous origin at Parapara are so much the more interesting, as they indicate ancient eruptions¹⁵⁸ in a granite zone; as they belong to the shore of the basin of the steppes, as the basalts of Harutsh belong to the shore of the desert of Sahara; and lastly, as they are the only rocks of the kind we observed in the mountains of the Capitania–General of Caracas, which are also destitute of trachytes or trap-porphyry, basalts, and volcanic productions.*

[* For instance, at Krobsdorf, in Silesia, a stratum of basalt has been recognized in the mica-slate by two celebrated geologists, MM. von Buch and Raumer. (Vom Granite des Riesengebirges, 1813.)]

[* The grunsteins or diabases of the Fichtelgebirge, in Franconia, which belong to the transition-slate, sometimes contain pyroxenes.]

[* From the Rio Negro to the coasts of Cumana and Caracas, to the east of the mountains of Merida, which we did not visit.]

The southern declivity of the western chain is tolerably steep; the steppes, according to my barometrical measurements, being a thousand feet lower than the bottom of the basin of Aragua. From the extensive table-land of the Villa de Cura we descended¹⁵⁹ towards the banks of the Rio Tucutunemo, which has hollowed for itself, in a serpentine rock, a longitudinal valley running from east to west, at nearly the same level as La Victoria. A transverse valley, lying generally north and south, led us into the Llanos, by the villages of Parapara and Ortiz. It grows very narrow in several parts. Basins, the bottoms of which are perfectly¹⁶⁰ horizontal, communicate together by narrow passes with steep declivities. They were, no doubt, formerly¹⁶¹ small lakes, which, owing to the accumulation of the waters, or some more violent catastrophe¹⁶², have broken down the dykes¹⁶³ by which they were separated. This phenomenon is found in both continents, wherever we examine the longitudinal valleys forming the passages of the Andes, the Alps,* or the Pyrenees. It is probable, that the irruption of the waters towards the Llanos have given, by extraordinary rents, the form of ruins to the Morros of San Juan and of San Sebastian. The volcanic tract of Parapara and Ortis is now only 30 or 40 toises above the Llanos. The eruptions consequently took place at the lowest point of the granitic¹⁶⁴ chain.

[* For example, the road from the valley of Ursern to the Hospice of St. Gothard, and thence to Airolo.]

In the Mesa de Paja, in the ninth degree of latitude, we entered the basin of the Llanos. The sun was almost at its zenith; the earth, wherever it appeared sterile¹⁶⁵ and destitute of vegetation, was at the temperature of 48 or 50°.* Not a breath of air was felt at the height at which we were on our mules¹⁶⁶; yet, in the midst of this apparent calm, whirls of dust incessantly¹⁶⁷ arose, driven on by those small currents of air which glide only over the surface of the ground, and are occasioned by the difference of temperature between the naked sand and the spots covered with grass. These sand-winds augment¹⁶⁸ the suffocating¹⁶⁹ heat of the air. Every grain of quartz, hotter than the surrounding air, radiates heat in every direction; and it is difficult to observe the temperature of the atmosphere, owing to these particles of sand striking against the bulb of the thermometer. All around us the plains seemed to ascend to the sky, and the vast and profound solitude appeared like an ocean covered with sea-weed. According to the unequal mass of vapours diffused¹⁷⁰ through the atmosphere, and the variable decrement in the temperature of the different strata of air, the horizon in some parts was clear and distinct; in other parts it appeared undulating, sinuous¹⁷¹, and as if striped. The earth there was confounded with the sky. Through the dry mist and strata of vapour the trunks of palm-trees were seen from afar, stripped of their foliage¹⁷² and their verdant¹⁷³ summits, and looking like the masts of a ship descried¹⁷⁴ upon the horizon.

[* A thermometer, placed in the sand, rose to 38.4 and 40° Reaumur.]

There is something awful, as well as sad and gloomy, in the uniform aspect of these steppes. Everything seems motionless; scarcely does a small cloud, passing across the zenith, and denoting the approach of the rainy season, cast its shadow on the earth. I know not whether the first aspect of the Llanos excite less astonishment than that of the chain of the Andes. Mountainous countries, whatever may be the absolute elevation of the highest summits, have an analogous physiognomy; but we accustom⁷ ourselves with difficulty to the view of the Llanos of Venezuela and Casanare, to that of the Pampas of Buenos Ayres and of Chaco, which recal to mind incessantly, and during journeys of twenty or thirty days, the smooth surface of the ocean. I had seen the plains or llanos of La Mancha in Spain, and the heaths (ericeta) that extend from the extremity¹⁷⁵ of Jutland, through Luneburg and Westphalia, to Belgium. These last are really steppes, and, during several ages, only small portions of them have yielded to cultivation; but the plains of the west and north of Europe present only a feeble image of the immense llanos of South America. It is in the south-east of our continent, in Hungary, between the Danube and the Theiss; in Russia, between the Borysthenes, the Don, and the Volga, that we find those vast pastures, which seem to have been levelled by a long abode¹⁷⁶ of the waters, and which meet the horizon on every side. The plains of Hungary, where I traversed them on the frontiers of Germany, between Presburg and Oedenburg, strike the imagination of the traveller by the constant mirage¹⁷⁷; but their greatest extent is more to the east, between Czegled, Debreczin, and Tittel. There they present the appearance of a vast ocean of verdure, having only two outlets¹⁷⁸, one near Gran and Waitzen, the other between Belgrade and Widdin.

The different quarters of the world have been supposed to be characterized by the remark, that Europe has its heaths, Asia its steppes, Africa its deserts, and America its savannahs; but by this distinction, contrasts are established that are not founded either on the nature of things, or the genius of languages. The existence of a heath always supposes an association of plants of the family of ericae; the steppes of Asia are not everywhere covered with saline plants; the savannahs of Venezuela furnish not only the gramina, but with them small herbaceous mimosas, legumina, and other dicotyledonous plants. The plains of Songaria, those which extend between the Don and the Volga, and the puszta of Hungary, are real savannahs, pasturages abounding¹⁷⁹ in grasses;* while the savannahs to the east and west of the Rocky Mountains and of New Mexico produce chenopodiums containing carbonate and muriate of soda¹⁸⁰. Asia has real deserts destitute of vegetation, in Arabia, in Gobi, and in Persia. Since we have become better acquainted with the deserts in the interior of Africa, so long and so vaguely¹⁸¹ confounded together under the name of desert of Sahara (Zahra); it has been observed, that in this continent, towards the east, savannahs and pastures are found, as in Arabia, situated¹⁸² in the midst of naked and barren tracts¹⁸³. It is these deserts, covered with gravel³⁷ and destitute of plants, which are almost entirely wanting in the New World. I saw them only in that part of Peru, between Amotape and Coquimbo, on the shores of the Pacific. These are called by the Spaniards, not llanos, but the desiertos of Sechura and Atacamez. This solitary tract is not broad, but it is four hundred and forty leagues long. The rock pierces everywhere through the quicksands. No drop of rain ever falls on it; and, like the desert of Sahara, north of Timbuctoo, the Peruvian desert affords, near Huaura, a rich mine of native salt. Everywhere else, in the New World, there are plains desert because not inhabited, but no real deserts.*

[* These vast steppes of Hungary are elevated only thirty or forty toises above the level of the sea, which is more than eighty leagues distant from them. See Wahlenberg’s Flora¹⁸⁴ Carpathianica. Baron¹⁸⁵ Podmanitzky, an Hungarian nobleman, highly distinguished for his knowledge of the physical sciences, caused the level of these plains to be taken, to facilitate the formation of a canal then projected between the Danube and the Theiss. He found the line of division, or the convexity of the ground, which slopes on each side towards the beds of the two rivers, to be only thirteen toises above the height of the Danube. The widely extended pastures, which reach in every direction to the horizon, are called in the country, Puszta, and, over a distance of many leagues, are without any human habitation. Plains of this kind, intermingled with marshes¹⁸⁷ and sandy tracts, are found on the western side of the Theiss, between Czegled, Csaba, Komloss, and Szarwass; and on the eastern side, between Debreczin, Karczag, and Szoboszlo. The area of these plains of the interior basin of Hungary has been estimated, by a pretty accurate calculation, to be between two thousand five hundred and three thousand square leagues (twenty to a degree). Between Czegled, Szolnok, and Ketskemet, the plain resembles a sea of sand.]

[* We are almost tempted, however, to give the name of desert to that vast and sandy table-land of Brazil, the Campos dos Parecis, which gives birth to the rivers Tapajos, Paraguay, and Madeira, and which reaches the summit of the highest mountains. Almost destitute of vegetation, it reminds us of Gobi, in Mongolia.]

The same phenomena are repeated in the most distant regions; and, instead of designating those vast treeless plains in accordance with the nature of the plants they produce, it seems natural to class them into deserts, steppes, or savannahs; into bare lands without any appearance of vegetation, and lands covered with gramina or small plants of the dicotyledonous tribe. The savannahs of America, especially those of the temperate¹⁸⁹ zone, have in many works been designated by the French term prairies; but this appears to me little applicable to pastures which are often very dry, though covered with grass of four or five feet in height. The Llanos and the Pampas of South America are really steppes. They are covered with beautiful verdure in the rainy season, but in the time of great drought they assume the aspect of a desert. The grass is then reduced to powder; the earth cracks; the alligators¹⁹⁰ and the great serpents remain buried in the dried mud, till awakened¹⁹² from their long lethargy by the first showers of spring. These phenomena are observed on barren tracts of fifty or sixty leagues in length, wherever the savannahs are not traversed by rivers; for on the borders of rivulets¹⁹³, and around little pools of stagnant¹⁹⁴ water, the traveller finds at certain distances, even during the period of the great droughts, thickets¹⁹⁵ of mauritia, a palm, the leaves of which spread out like a fan, and preserve a brilliant verdure.

The steppes of Asia are all beyond the tropics, and form very elevated table-lands. America also has savannahs of considerable extent on the backs of the mountains of Mexico, Peru, and Quito; but its most extensive steppes, the Llanos of Cumana, Caracas, and Meta, are little raised above the level of the ocean, and all belong to the equinoctial zone. These circumstances give them a peculiar character. They have not, like the steppes of southern Asia, and the deserts of Persia, those lakes without issue, those small systems of rivers which lose themselves either in the sands, or by subterranean¹⁹⁶ filtrations. The Llanos of America incline to the east and south; and their running waters are branches of the Orinoco.

The course of these rivers once led me to believe, that the plains formed table-lands, raised at least from one hundred to one hundred and fifty toises above the level of the ocean. I supposed that the deserts of interior Africa were also at a considerable height; and that they rose one above another as in tiers, from the coast to the interior of the continent. No barometer¹⁹⁷ has yet been carried into the Sahara. With respect to the Llanos of America, I found by barometric⁵³ heights observed at Calabozo, at the Villa del Pao, and at the mouth of the Meta, that their height is only forty or fifty toises above the level of the sea. The fall of the rivers is extremely gentle, often nearly imperceptible; and therefore the least wind, or the swelling¹⁹⁸ of the Orinoco, causes a reflux in those rivers that flow into it. The Indians believe themselves to be descending¹⁹⁹ during a whole day, when navigating²⁰⁰ from the mouths of these rivers to their sources. The descending waters are separated from those that flow back by a great body of stagnant water, in which, the equilibrium²⁰¹ being disturbed, whirlpools are formed very dangerous for boats.

The chief characteristic of the savannahs or steppes of South America is the absolute want of hills and inequalities — the perfect level of every part of the soil. Accordingly the Spanish conquerors²⁰², who first penetrated²⁰⁴ from Coro to the banks of the Apure, did not call them deserts or savannahs, or meadows, but plains (llanos). Often within a distance of thirty square leagues there is not an eminence²⁰⁵ of a foot high. This resemblance to the surface of the sea strikes the imagination most powerfully where the plains are altogether destitute of palm-trees; and where the mountains of the shore and of the Orinoco are so distant that they cannot be seen, as in the Mesa de Pavones. A person would be tempted there to take the altitude of the sun with a quadrant, if the horizon of the land were not constantly misty²⁰⁶ on account of the variable effects of refraction. This equality of surface is still more perfect in the meridian²⁰⁷ of Calabozo, than towards the east, between Cari, La Villa del Pao, and Nueva Barcelona; but it extends without interruption from the mouths of the Orinoco to La Villa de Araure and to Ospinos, on a parallel of a hundred and eighty leagues in length; and from San Carlos to the savannahs of Caqueat, on a meridian of two hundred leagues. It particularly characterises the New Continent, as it does the low steppes of Asia, between the Borysthenes and the Volga, between the Irtish and the Obi. The deserts of central Africa, of Arabia, Syria, and Persia, Gobi, and Casna, present, on the contrary, many inequalities, ranges of hills, ravines without water, and rocks which pierce the sands.

The Llanos, however, notwithstanding the apparent uniformity of their surface, present two kinds of inequalities, which cannot escape the observation of the traveller. The first is known by the name of banks (bancos); they are in reality shoals in the basin of the steppes, fractured strata of sandstone, or compact limestone, standing²⁰⁸ four or five feet higher than the rest of the plain. These banks are sometimes three or four leagues in length; they are entirely smooth, with a horizontal surface; their existence is perceived only by examining their margins²¹⁰. The second species of inequality can be recognised only by geodesical or barometric levellings, or by the course of rivers. It is called a mesa or table, and is composed of small flats, or rather convex eminences²¹¹, that rise insensibly to the height of a few toises. Such are, towards the east, in the province of Cumana, on the north of the Villa de la Merced and Candelaria, the Mesas of Amana, of Guanipa, and of Jonoro, the direction of which is south-west and north-east; and which, in spite of their inconsiderable elevation, divide the waters between the Orinoco and the northern coast of Terra Firma. The convexity of the savannah alone occasions this partition: we there find the dividing of the waters (divortia aquarum*), as in Poland, where, far from the Carpathian mountains, the plain itself divides the waters between the Baltic and the Black Sea. Geographers²¹², who suppose the existence of a chain of mountains wherever there is a line of division, have not failed to mark one in the maps, at the sources of the Rio Neveri, the Unare, the Guarapiche, and the Pao. Thus the priests of Mongol race, according to ancient and superstitious²¹³ custom, erect²¹⁴ oboes, or little mounds²¹⁵ of stone, on every point where the rivers flow in an opposite direction.

[* “C. Manlium prope jugis [Tauri] ad divortia aquarum castra posuisse.” Livy lib. 38 c. 75.]

The uniform landscape of the Llanos; the extremely small number of their inhabitants; the fatigue²¹⁶ of travelling beneath a burning sky, and an atmosphere darkened by dust; the view of that horizon, which seems for ever to fly before us; those lonely trunks of palm-trees, which have all the same aspect, and which we despair of reaching, because they are confounded with other trunks that rise by degrees on the visual horizon; all these causes combine to make the steppes appear far more extensive than they are in reality. The planters who inhabit the southern declivity of the chain of the coast see the steppes extend towards the south, as far as the eye can reach, like an ocean of verdure. They know that from the Delta²¹⁷ of the Orinoco to the province of Varinas, and thence, by traversing the banks of the Meta, the Guaviare, and the Caguan, they can advance three hundred and eighty leagues* into the plains, first from east to west, and then from north-east to south-east beyond the Equator, to the foot of the Andes of Pasto. They know by the accounts of travellers the Pampas of Buenos Ayres, which are also Llanos covered with fine grass, destitute of trees, and filled with oxen and horses become wild. They suppose that, according to the greater part of our maps of America, this continent has only one chain of mountains, that of the Andes, which stretches from south to north; and they form a vague idea of the contiguity²¹⁸ of all the plains from the Orinoco and the Apure to the Rio de la Plata and the Straits of Magellan.

[* This is the distance from Timbuctoo to the northern coast of Africa.]

Without stopping here to give a mineralogical description of the transverse chains which divide America from east to west, it will be sufficient to notice the general structure of a continent, the extremities²¹⁹ of which, though situated in climates little analogous, nevertheless present several features of resemblance. In order to have an exact idea of the plains, their configuration²²⁰, and their limits, we must know the chains of mountains that form their boundaries. We have already described the Cordillera of the coast, of which the highest summit is the Silla de Caraccas, and which is linked by the Paramo de las Rosas to the Nevada de Merida, and the Andes of New Grenada. We have seen that, in the tenth degree of north latitude, it stretches from Quibor and Barquesimeto as far as the point of Paria. A second chain of mountains, or rather a less elevated but much larger group, extends between the parallels of 3 and 7° from the mouths of the Guaviare and the Meta to the sources of the Orinoco, the Marony, and the Essequibo, towards French and Dutch Guiana. I call this chain the Cordillera of Parime, or of the great cataracts²²¹ of the Orinoco. It may be followed for a length of two hundred and fifty leagues; but it is less a chain, than a collection of granitic mountains, separated by small plains, without being everywhere disposed in lines. The group of the mountains of Parime narrows considerably between the sources of the Orinoco and the mountains of Demerara, in the Sierras of Quimiropaca and Pacaraimo, which divide the waters between the Carony and the Rio Parime, or Rio de Aguas Blancas. This is the scene of the expeditions which were undertaken in search of El Dorado, and the great city of Manoa, the Timbuctoo of the New Continent. The Cordillera of Parime does not join the Andes of New Grenada, but is separated from them by a space eighty leagues broad. If we suppose it to have been destroyed in this space by some great revolution of the globe (which is scarcely probable) we must admit that it anciently branched off from the Andes between Santa Fe de Bogota and Pamplona. This remark serves to fix more easily in the memory of the reader the geographical²²² position of a Cordillera till now very imperfectly known. A third chain of mountains unites in 16 and 18° south latitude (by Santa Cruz de la Sierra, the Serranias of Aguapehy, and the famous Campos dos Parecis) the Andes of Peru, to the mountains of Brazil. It is the Cordillera of Chiquitos which widens in the Capitania de Minas Geraes, and divides the rivers flowing into the Amazon from those of the Rio de la Plata,* not only in the interior of the country, in the meridian of Villa Boa, but also at a few leagues from the coast, between Rio Janeiro and Bahia.*

[* There is only a portage or carrying-place of 5322 bracas between the Guapore (a branch of the Marmore and of the Madeira), and the Rio Aguapehy (a branch of the Jaura and of the Paraguay).]

[* The Cordillera of Chiquitos and of Brazil stretches toward the south-east, in the government of the Rio Grande, beyond the latitude of 30° south.]

These three transverse chains, or rather these three groups of mountains stretching from west to east, within the limits of the torrid zone, are separated by tracts entirely level, the plains of Caracas, or of the Lower Orinoco; the plains of the Amazon and the Rio Negro; and the plains of Buenos Ayres, or of La Plata. I use the term plains, because the Lower Orinoco and the Amazon, far from flowing in a valley, form but a little furrow²²³ in the midst of a vast level. The two basins, placed at the extremities of South America, are savannahs or steppes, pasturage without trees; the intermediate basin, which receives the equatorial rains during the whole year, is almost entirely one vast forest, through which no other roads are known save the rivers. The strong vegetation which conceals²²⁴ the soil, renders also the uniformity of its level less perceptible; and the plains of Caracas and La Plata bear no other name. The three basins we have just described are called, in the language of the colonists, the Llanos of Varinas and of Caracas, the bosques or selvas (forests) of the Amazon, and the Pampas of Buenos Ayres. The trees not only for the most part cover the plains of the Amazon, from the Cordillera de Chiquitos, as far as that of Parime; they also crown these two chains of mountains, which rarely attain²²⁵ the height of the Pyrenees.* On this account, the vast plains of the Amazon, the Madeira, and the Rio Negro, are not so distinctly bounded as the Llanos of Caracas, and the Pampas of Buenos Ayres. As the region of forests comprises at once the plains and the mountains, it extends from 18° south to 7 and 8° north,* and occupies an extent of near a hundred and twenty thousand square leagues. This forest of South America, for in fact there is only one, is six times larger than France. It is known to Europeans only on the shores of a few rivers, by which it is traversed; and has its openings, the extent of which is in proportion to that of the forests. We shall soon skirt the marshy²²⁶ savannahs, between the Upper Orinoco, the Conorichite, and the Cassiquiare, in the latitude of 3 and 4°. There are other openings, or as they are called, clear savannahs,* in the same parallel, between the sources of the Mao and the Rio de Aguas Blancas, south of the Sierra de Pacaraima. These last savannahs, which are inhabited by Caribs, and nomad²²⁷ Macusis, lie near the frontiers of Dutch and French Guiana.

[* We must except the most western part of the Cordillera of Chiquitos, between Cochabamba and Santa Cruz de la Sierra where the summits are covered with snow; but this colossal²²⁸ group almost belongs to the Andes de la Paz, of which it forms a promontory²²⁹ or spur, directed toward the east.]

[* To the west, in consequence of the Llanos of Manso, and the Pampas de Huanacos, the forests do not extend generally beyond the parallels of 18 or 19° south latitude; but to the east, in Brazil (in the capitanias of San Pablo and Rio Grande) as well as in Paraguay, on the borders of the Parana, they advance as far as 25° south.]

[* Savannas²³⁰ limpias, that is to say, clear of trees.]

Having noticed the geological constitution of South America, we shall now mark its principal features. The western coasts are bordered by an enormous wall of mountains, rich in precious metals wherever volcanic fire has not pierced through the eternal snow. This is the Cordillera of the Andes. Summits of trap-porphyry rise beyond three thousand three hundred toises, and the mean height of the chain* is one thousand eight hundred and fifty toises. It stretches in the direction of a meridian, and sends into each hemisphere a lateral²³¹ branch, in the latitudes²³² of 10° north, and 16 and 18° south. The first of these two branches, that of the coast of Caracas, is of considerable length, and forms in fact a chain. The second branch, the Cordillera of Chiquitos and of the sources of the Guapore, is very rich in gold, and widens toward the east, in Brazil, into vast tablelands, having a mild and temperate climate. Between these two transverse chains, contiguous to the Andes, an isolated group of granitic mountains is situated, from 3 to 7° north latitude; which also runs parallel to the Equator, but, not passing the meridian of 71°, terminates abruptly²³³ towards the west, and is not united to the Andes of New Grenada. These three transverse chains have no active volcanoes; we know not whether the most southern, like the two others, be destitute of trachytes or trap-porphyry. None of their summits enter the limit of perpetual snow; and the mean height of the Cordillera of La Parime, and of the littoral²³⁴ chain of Caracas, does not reach six hundred toises, though some of its summits rise fourteen hundred toises above the level of the sea.* The three transverse chains are separated by plains entirely closed towards the west, and open towards the east and south-east. When we reflect on their small elevation above the surface of the ocean, we are tempted to consider them as gulfs stretching in the direction of the current of rotation²³⁶. If, from the effect of some peculiar attraction, the waters of the Atlantic were to rise fifty toises at the mouth of the Orinoco, and two hundred toises at the mouth of the Amazon, the flood would submerge more than the half of South America. The eastern declivity, or the foot of the Andes, now six hundred leagues distant from the coast of Brazil, would become a shore beaten by the waves. This consideration is the result of a barometric measurement, taken in the province of Jaen de Bracamoros, where the river Amazon issues from the Cordilleras. I found the mean height of this immense river only one hundred and ninety-four toises above the present level of the Atlantic. The intermediate plains, however, covered with forests, are still five times higher than the Pampas of Buenos Ayres, and the grass-covered Llanos of Caracas and the Meta.

[* In New Grenada, Quito, and Peru, according to measurements taken by Bouguer, La Condamine, and myself.]

[* We do not reckon here, as belonging to the chain of the coast, the Nevados and Paramos of Merida and of Truxillo, which are a prolongation of the Andes of New Grenada.]

Those Llanos which form the basin of the Orinoco, and which we crossed twice in one year, in the months of March and July, communicate with the basin of the Amazon and the Rio Negro, bounded on one side by the Cordillera of Chiquitos, and on the other by the mountains of Parime. The opening which is left between the latter and the Andes of New Grenada, occasions this communication. The aspect of the country here reminds us, but on a much larger scale, of the plains of Lombardy, which also are only fifty or sixty toises above the level of the ocean; and are directed first from La Brenta to Turin, east and west; and then from Turin to Coni, north and south. If we were authorized²³⁷, from other geological facts, to regard the three great plains of the Lower Orinoco, the Amazon, and the Rio de la Plata as basins of ancient lakes,* we should imagine we perceived in the plains of the Rio Vichada and the Meta, a channel by which the waters of the upper lake (those of the plains of the Amazon) forced their way towards the lower basin, (that of the Llanos of Caracas,) separating the Cordillera of La Parime from that of the Andes. This channel is a kind of land-strait. The ground, which is perfectly level between the Guaviare, the Meta, and the Apure, displays no vestige of a violent irruption of the waters; but on the edge of the Cordillera of Parime, between the latitudes of 4 and 7°, the Orinoco, flowing in a westerly direction from its source to the mouth of the Guaviare, has forced its way through the rocks, directing its course from south to north. All the great cataracts, as we shall soon see, are within the latitudes just named. When the river has reached the mouth of the Apure in that very low ground where the slope towards the north is met by the counter-slope towards the south-east, that is to say, by the inclination²³⁸ of the plains which rise imperceptibly towards the mountains of Caracas, the river turns anew and flows eastward²³⁹. It appeared to me, that it was proper to fix the attention of the reader on these singular inflexions of the Orinoco because, belonging at once to two basins, its course marks, in some sort, even on the most imperfect maps, the direction of that part of the plains intervening between New Grenada and the western border of the mountains of La Parime.

[* In Siberia, the great steppes between the Irtish and the Obi, especially that of Baraba, full of salt lakes (Tchabakly, Tchany, Karasouk, and Topolony), appear to have been, according to the Chinese traditions, even within historical times, an inland sea.]

The Llanos or steppes of the Lower Orinoco and of the Meta, like the deserts of Africa, bear different names in different parts. From the mouths of the Dragon the Llanos of Cumana, of Barcelona, and of Caracas or Venezuela,* follow, running from east to west. Where the steppes turn towards the south and south-south-west, from the latitude of 8°, between the meridians²⁴⁰ of 70 and 73°, we find from north to south, the Llanos of Varinas, Casanare, the Meta, Guaviare, Caguau, and Caqueta.* The plains of Varinas contain some few monuments of the industry of a nation that has disappeared. Between Mijagual and the Cano de la Hacha, we find some real tumuli, called in the country the Serillos de los Indios. They are hillocks in the shape of cones, artificially formed of earth, and probably contain bones, like the tumuli in the steppes of Asia. A fine road is also discovered near Hato de la Calzada, between Varinas and Canagua, five leagues long, made before the conquest, in the most remote times, by the natives. It is a causeway of earth fifteen feet high, crossing a plain often overflowed²⁴¹. Did nations farther advanced in civilization descend from the mountains of Truxillo and Merido to the plains of the Rio Apure? The Indians whom we now find between this river and the Meta, are in too rude a state to think of making roads or raising tumuli.

[* The following are subdivisions of these three great Llanos, as I marked them down on the spot. The Llanos of Cumana and New Andalusia include those of Maturin and Terecen, of Amana, Guanipa, Jonoro, and Cari. The Llanos of Nueva Barcelona comprise those of Aragua, Pariaguan, and Villa del Pao. We distinguish in the Llanos of Caracas those of Chaguaramas, Uritucu, Calabozo or Guarico, La Portuguesa, San Carlos, and Araure.]

[* The inhabitants of these plains distinguish as subdivisions, from the Rio Portuguesa to Caqueta, the Llanos of Guanare, Bocono, Nutrius or the Apure, Palmerito near Quintero, Guardalito and Arauca, the Meta, Apiay near the port of Pachaquiaro, Vichada, Guaviare, Arriari, Inirida, the Rio Hacha, and Caguan. The limits between the savannahs and the forests, in the plains that extend from the sources of the Rio Negro to Putumayo, are not sufficiently known.]

I calculated the area of these Llanos from the Caqueta to the Apure, and from the Apure to the Delta of the Orinoco, and found it to be seventeen thousand square leagues twenty to a degree. The part running from north to south is almost double that which stretches from east to west, between the Lower Orinoco and the littoral chain of Caracas. The Pampas on the north and north-west of Buenos Ayres, between this city and Cordova, Jujuy, and the Tucuman, are of nearly the same extent as the Llanos; but the Pampas stretch still farther on to the length of 18° southward; and the land they occupy is so vast, that they produce palm-trees at one of their extremities, while the other, equally low and level, is covered with eternal frost.

The Llanos of America, where they extend in the direction of a parallel of the equator, are three-fourths narrower then the great desert of Africa. This circumstance is very important in a region where the winds constantly blow from east to west. The farther the plains stretch in this direction, the more ardent²⁴² is their climate. The great ocean of sand in Africa communicates by Yemen* with Gedrosia and Beloochistan, as far as the right bank of the Indus. It is from the effect of winds that have passed over the deserts situated to the east, that the little basin of the Red Sea, surrounded by plains which send forth from all sides radiant caloric, is one of the hottest regions of the globe. The unfortunate captain Tuckey relates,* that the centigrade thermometer keeps there generally in the night at 34°, and by day from 40 to 44°. We shall soon see that, even in the westernmost part of the steppes of Caracas, we seldom found the temperature of the air, in the shade, above 37°.

[* We cannot be surprised that the Arabic should be richer than any other language of the East in words expressing the ideas of desert, uninhabited plains, and plains covered with gramina. I could give a list of thirty-five of these words, which the Arabian authors employ without always distinguishing them by the shades of meaning which each separate word expresses. Makadh and kaah indicate, in preference, plains; bakaak, a table-land; kafr, mikfar, smlis, mahk, and habaucer, a naked desert, covered with sand and gravel; tanufah, a steppe. Zahra means at once a naked desert and a savannah. The word steppe, or step, is Russian, and not Tartarian. In the Turco–Tartar dialect a heath is called tala or tschol. The word gobi, which Europeans have corrupted²⁴³ into cobi, signifies in the Mongol tongue a naked desert. It is equivalent to the scha-mo or khan-hai of the Chinese. A steppe, or plain covered with herbs, is in Mongol, kudah; in Chinese, kouana.]

[* Expedition to explore the river Zahir, 1818.]

These physical considerations on the steppes of the New World are linked with others more interesting, inasmuch as they are connected with the history of our species. The great sea of sand in Africa, the deserts without water, are frequented only by caravans²⁴⁴, that take fifty days to traverse them.* Separating the Negro race from the Moors²⁴⁵, and the Berber and Kabyle tribes, the Sahara is inhabited only in the oases²⁴⁶. It affords pasturage only in the eastern part, where, from the effect of the trade-winds, the layer of sand being less thick, the springs appear at the surface of the earth. In America, the steppes, less vast, less scorching²⁴⁷, fertilized²⁴⁸ by fine rivers, present fewer obstacles to the intercourse²⁴⁹ of nations. The Llanos separate the chain of the coast of Caracas and the Andes of New Grenada from the region of forests; from that woody region of the Orinoco which, from the first discovery of America, has been inhabited by nations more rude, and farther removed from civilization, than the inhabitants of the coast, and still more than the mountaineers of the Cordilleras. The steppes, however, were no more heretofore the rampart of civilization than they are now the rampart of the liberty of the hordes²⁵⁰ that live in the forests. They have not hindered the nations of the Lower Orinoco from going up the little rivers and making incursions to the north and the west. If, according to the various distribution of animals on the globe, the pastoral life could have existed in the New World — if, before the arrival of the Spaniards, the Llanos and the Pampas had been filled with those numerous herds²⁵³ of cows and horses that graze there, Columbus would have found the human race in a state quite different. Pastoral nations living on milk and cheese, real nomad races, would have spread themselves over those vast plains which communicate with each other. They would have been seen at the period of great droughts, and even at that of inundations, fighting for the possession of pastures; subjugating²⁵⁵ one another mutually; and, united by the common tie of manners, language, and worship, they would have risen to that state of demi-civilization which we observe with surprise in the nations of the Mongol and Tartar race. America would then, like the centre of Asia, have had its conquerors, who, ascending²⁵⁶ from the plains to the tablelands of the Cordilleras, and abandoning a wandering life, would have subdued²⁵⁷ the civilized²⁵⁸ nations of Peru and New Grenada, overturned the throne of the Incas and of the Zaque,* and substituted for the despotism which is the fruit of theocracy²⁵⁹, that despotism which arises from the patriarchal government of a pastoral people. In the New World the human race has not experienced these great moral and political changes, because the steppes, though more fertile than those of Asia, have remained without herds; because none of the animals that furnish milk in abundance are natives of the plains of South America; and because, in the progressive unfolding of American civilization, the intermediate link is wanting that connects the hunting with the agricultural nations.

[* This is the maximum of the time, according to Major Rennell, Travels of Mungo Park volume 2.]

[* The Zaque was the secular²⁶⁰ chief of Cundinamarca. His power was shared with the high priest (lama) of Iraca.]

We have thought proper to bring together these general notions on the plains of the New Continent, and the contrast they exhibit to the deserts of Africa and the fertile steppes of Asia, in order to give some interest to the narrative²⁶¹ of a journey across lands of so monotonous²⁶² an aspect. Having now accomplished²⁶³ this task, I shall trace the route by which we proceeded from the volcanic mountains of Parapara and the northern side of the Llanos, to the banks of the Apure, in the province of Varinas.

After having passed two nights on horseback, and sought in vain, by day, for some shelter from the heat of the sun beneath the tufts of the moriche palm-trees, we arrived before night at the little Hato del Cayman,* called also La Guadaloupe. It was a solitary house in the steppes, surrounded by a few small huts, covered with reeds and skins. The cattle, oxen, horses, and mules are not penned, but wander freely over an extent of several square leagues. There is nowhere any enclosure; men, naked to the waist and armed with a lance, ride over the savannahs to inspect the animals; bringing back those that wander too far from the pastures of the farm, and branding all that do not already bear the mark of their proprietor²⁶⁴. These mulattos, who are known by the name of peones llaneros, are partly freed-men and partly slaves. They are constantly exposed to the burning heat of the tropical sun. Their food is meat, dried in the air, and a little salted; and of this even their horses sometimes partake. Being always in the saddle, they fancy they cannot make the slightest excursion on foot. We found an old negro slave, who managed the farm in the absence of his master. He told us of herds composed of several thousand cows, that were grazing in the steppes; yet we asked in vain for a bowl of milk. We were offered, in a calabash, some yellow, muddy, and fetid water, drawn from a neighbouring pool. The indolence of the inhabitants of the Llanos is such that they do not dig wells, though they know that almost everywhere, at ten feet deep, fine springs are found in a stratum of conglomerate²⁶⁵, or red sandstone. After suffering during one half of the year from the effect of inundations, they quietly resign themselves, during the other half; to the most distressing²⁶⁶ deprivation²⁶⁷ of water. The old negro advised us to cover the cup with a linen²⁶⁸ cloth, and drink as through a filter, that we might not be incommoded by the smell, and might swallow less of the yellowish mud suspended in the water. We did not then think that we should afterwards be forced, during whole months, to have recourse to this expedient²⁶⁹. The waters of the Orinoco are always loaded with earthy particles; they are even putrid²⁷⁰, where dead bodies of alligators are found in the creeks²⁷¹, lying on banks of sand, or half-buried in the mud.

[* The Farm of the Alligator¹⁹¹.]

No sooner were our instruments unloaded and safely placed, than our mules were set at liberty to go, as they say here, para buscar agua, that is, “to search for water.” There are little pools round the farm, which the animals find, guided by their instinct, by the view of some scattered tufts of mauritia, and by the sensation of humid coolness, caused by little currents of air amid an atmosphere which to us appears calm and tranquil²⁷². When the pools of water are far distant, and the people of the farm are too lazy to lead the cattle to these natural watering-places, they confine them during five or six hours in a very hot stable before they let them loose. Excess of thirst then augments²⁷³ their sagacity, sharpening as it were their senses and their instinct. No sooner is the stable opened, than the horses and mules, especially the latter (for the penetration²⁷⁴ of these animals exceeds the intelligence of the horses), rush into the savannahs. With upraised tails and heads thrown back they run against the wind, stopping from time to time as if exploring space; they follow less the impressions of sight than of smell; and at length announce, by prolonged neighings, that there is water in the direction of their course. All these movements are executed more promptly²⁷⁵, and with readier success, by horses born in the Llanos, and which have long enjoyed their liberty, than by those that come from the coast, and descend from domestic horses. In animals, for the most part, as in man, the quickness of the senses is diminished by long subjection, and by the habits that arise from a fixed abode and the progress of cultivation.

We followed our mules in search of one of those pools, whence the muddy water had been drawn, that so ill quenched²⁷⁶ our thirst. We were covered with dust, and tanned by the sandy wind, which burns the skin even more than the rays of the sun. We longed impatiently to take a bath, but we found only a great pool of feculent water, surrounded with palm-trees. The water was turbid²⁷⁷, though, to our great astonishment, a little cooler than the air. Accustomed during our long journey to bathe whenever we had an opportunity, often several times in one day, we hastened to plunge into the pool. We had scarcely begun to enjoy the coolness of the bath, when a noise which we heard on the opposite bank, made us leave the water precipitately²⁷⁸. It was an alligator plunging²⁷⁹ into the mud.

We were only at the distance of a quarter of a league from the farm, yet we continued walking more than an hour without reaching it. We perceived too late that we had taken a wrong direction. Having left it at the decline of day, before the stars were visible, we had gone forward into the plain at hazard. We were, as usual, provided with a compass, and it might have been easy for us to steer²⁸⁰ our course from the position of Canopus and the Southern Cross; but unfortunately we were uncertain whether, on leaving the farm, we had gone towards the east or the south. We attempted to return to the spot where we had bathed, and we again walked three quarters of an hour without finding the pool. We sometimes thought we saw fire on the horizon; but it was the light of the rising stars enlarged by the vapours. After having wandered a long time in the savannah, we resolved to seat ourselves beneath the trunk of a palm-tree, in a spot perfectly dry, surrounded by short grass; for the fear of water-snakes is always greater than that of jaguars²⁸² among Europeans recently disembarked. We could not flatter ourselves that our guides, of whom we knew the insuperable indolence, would come in search of us in the savannah before they had prepared their food and finished their repast. Whilst somewhat perplexed²⁸³ by the uncertainty²⁸⁴ of our situation, we were agreeably affected²⁸⁵ by hearing from afar the sound of a horse advancing towards us. The rider was an Indian, armed with a lance, who had just made the rodeo, or round, in order to collect the cattle within a determinate space of ground. The sight of two white men, who said they had lost their way, led him at first to suspect some trick. We found it difficult to inspire him with confidence; he at last consented to guide us to the farm of the Cayman, but without slackening the gentle trot²⁸⁶ of his horse. Our guides assured us that “they had already begun to be uneasy about us;” and, to justify²⁸⁷ this inquietude, they gave a long enumeration²⁸⁸ of persons who, having lost themselves in the Llanos, had been found nearly exhausted²⁸⁹. It may be supposed that the danger is imminent²⁹⁰ only to those who lose themselves far from any habitation, or who, having been stripped by robbers, as has happened of late years, have been fastened by the body and hands to the trunk of a palm-tree.

In order to escape as much as possible from the heat of the day, we set off at two in the morning, with the hope of reaching Calabozo before noon, a small but busy trading-town, situated in the midst of the Llanos. The aspect of the country was still the same. There was no moonlight; but the great masses of nebulae that spot the southern sky enlighten, as they set, a part of the terrestrial horizon. The solemn spectacle of the starry²⁹¹ vault²⁹², seen in its immense expanse — the cool breeze which blows over the plain during the night — the waving motion of the grass, wherever it has attained²⁹³ any height; everything recalled to our minds the surface of the ocean. The illusion was augmented²⁹⁴ when the disk of the sun appearing on the horizon, repeated its image by the effects of refraction, and, soon losing its flattened form, ascended²⁹⁵ rapidly and straight towards the zenith.

Sunrise in the plains is the coolest moment of the day; but this change of temperature does not make a very lively impression on the organs. We did not find the thermometer in general sink below 27.5; while near Acapulco, at Mexico, and in places equally low, the temperature at noon is often 32, and at sunrise only 17 or 18°. The level surface of the ground in the Llanos, which, during the day, is never in the shade, absorbs so much heat that, notwithstanding the nocturnal radiation toward a sky without clouds, the earth and air have not time to cool very sensibly from midnight to sunrise.

In proportion as the sun rose towards the zenith, and the earth and the strata of superincumbent air took different temperatures, the phenomenon of the mirage displayed itself in its numerous modifications²⁹⁷. This phenomenon is so common in every zone, that I mention it only because we stopped to measure with some precision the breadth of the aerial distance between the horizon and the suspended object. There was a constant suspension, without inversion²⁹⁸. The little currents of air that swept the surface of the soil had so variable a temperature that, in a drove of wild oxen, one part appeared with the legs raised above the surface of the ground, while the other rested on it. The aerial distance was, according to the distance of the animal, from 3 to 4 minutes. Where tufts of the moriche palm were found growing in long ranges, the extremities of these green rows were suspended like the capes²⁹⁹ which were, for so long a time, the subject of my observations at Cumana. A well-informed person assured us, that he had seen, between Calabozo and Uritucu, the image of an animal inverted³⁰⁰, without there being any direct image. Niebuhr made a similar observation in Arabia. We several times thought we saw on the horizon the figures of tumuli and towers, which disappeared at intervals³⁰¹, without our being able to discern the real shape of the objects. They were perhaps hillocks, or small eminences, situated beyond the ordinary visual horizon. I need not mention those tracts destitute of vegetation, which appear like large lakes with an undulating surface. This phenomenon, observed in very remote times, has occasioned the mirage to receive in Sanscrit the expressive³⁰² name of desire of the antelope³⁰³. We admire the frequent allusions³⁰⁴ in the Indian, Persian, and Arabic poets, to the magical effects of terrestrial refraction. It was scarcely known to the Greeks and Romans. Proud of the riches of their soil, and the mild temperature of the air, they would have felt no envy of this poetry of the desert. It had its birth in Asia; and the oriental poets found its source in the nature of the country they inhabited. They were inspired with the aspect of those vast solitudes³⁰⁵, interposed like arms of the sea or gulfs, between lands which nature had adorned³⁰⁶ with her most luxuriant fertility.

The plain assumes at sunrise a more animated³⁰⁷ aspect. The cattle, which had reposed³⁰⁸ during the night along the pools, or beneath clumps³¹⁰ of mauritias and rhopalas, were now collected in herds; and these solitudes became peopled with horses, mules, and oxen, that live here free, rather than wild, without settled habitations, and disdaining³¹¹ the care and protection of man. In these hot climates, the oxen, though of Spanish breed, like those of the cold table-lands of Quito, are of a gentle disposition³¹². A traveller runs no risk of being attacked or pursued, as we often were in our excursions on the back of the Cordilleras, where the climate is rude, the aspect of the country more wild, and food less abundant. As we approached Calabozo, we saw herds of roebucks browsing³¹³ peacefully in the midst of horses and oxen. They are called matacani; their flesh is good; they are a little larger than our roes³¹⁴, and resemble deer with a very sleek³¹⁵ skin, of a fawn-colour, spotted³¹⁶ with white. Their horns appear to me to have single points. They had little fear of the presence of man: and in herds of thirty or forty we observed several that were entirely white. This variety, common enough among the large stags of the cold climates of the Andes, surprised us in these low and burning plains. I have since learned, that even the jaguar²⁸¹, in the hot regions of Paraguay, sometimes affords albino varieties, the skin of which is of such uniform whiteness that the spots or rings can be distinguished only in the sunshine. The number of matacani, or little deer,* is so considerable in the Llanos, that a trade might be carried on with their skins.* A skilful³¹⁷ hunter could easily kill more than twenty in a day; but such is the indolence of the inhabitants, that often they will not give themselves the trouble of taking the skin. The same indifference³¹⁸ is evinced in the chase of the jaguar, a skin of which fetches only one piastre in the steppes of Varinas, while at Cadiz it costs four or five.

[* They are called in the country Venados de tierras calientes (deer of the warm lands.)]

[* This trade is carried on, but on a very limited scale, at Carora and at Barquesimeto.]

The steppes that we traversed are principally covered with grasses of the genera Killingia, Cenchrus, and Paspalum.* At this season, near Calabozo and San Jerome del Pirital, these grasses scarcely attain the height of nine or ten inches. Near the banks of the Apure and the Portuguesa they rise to four feet in height, so that the jaguar can conceal¹¹⁶ himself among them, to spring upon the mules and horses that cross the plain. Mingled with these gramina some plants of the dicotyledonous class are found; as turneras, malvaceae, and, what is very remarkable, little mimosas with irritable³²⁰ leaves,* called by the Spaniards dormideras. The same breed of cows, which fatten³²¹ in Europe on sainfoin and clover, find excellent nourishment³²² in the herbaceous sensitive plants. The pastures where these shrubs³²³ particularly abound are sold at a higher price than others. To the east, in the llanos of Cari and Barcelona, the cypura and the craniolaria,* the beautiful white flower of which is from six to eight inches long, rise solitarily³²⁴ amid the gramina. The pastures are richest not only around the rivers subject to inundations, but also wherever the trunks of palm-trees are near each other. The least fertile spots are those destitute of trees; and attempts to cultivate them would be nearly fruitless. We cannot attribute this difference to the shelter afforded by the palm-trees, in preventing the solar rays from drying and burning up the soil. I have seen, it is true, trees of this family, in the forests of the Orinoco, spreading a tufted foliage; but we cannot say much for the shade of the palm-tree of the llanos, the palma de cobija,* which has but a few folded and palmate leaves, like those of the chamaerops, and of which the lower-most are constantly withered³²⁵. We were surprised to see that almost all these trunks of the corypha were nearly of the same size, namely, from twenty to twenty-four feet high, and from eight to ten inches diameter at the foot. Nature has produced few species of palm-trees in such prodigious³²⁶ numbers. Amidst thousands of trunks loaded with olive-shaped fruits we found about one hundred without fruit. May we suppose that there are some trees with flowers purely³²⁷ monoecious, mingled with others furnished with hermaphrodite flowers?

[* Killingia monocephala, K. odorata, Cenchrus pilosus, Vilfa tenacissima, Andropogon plumosum, Panicum micranthum, Poa repens, Paspalum leptostachyum, P. conjugatum, Aristida recurvata. (Nova Genera et Species Plantarum, volume 1 pages 84 to 243.)]

[* The sensitive-plant Mimosa dormiens.]

[* Cypura graminea, Craniolaria annua, the scorzonera of the natives.]

[* The roofing palm-tree Corypha tectorum.]

The Llaneros, or inhabitants of the plains, believe that all these trees, though so low, are many centuries old. Their growth is almost imperceptible, being scarcely to be noticed in the lapse³²⁸ of twenty or thirty years. The wood of the palma de cobija is excellent for building. It is so hard, that it is difficult to drive a nail into it. The leaves, folded like a fan, are employed to cover the roofs of the huts scattered through the Llanos; and these roofs last more than twenty years. The leaves are fixed by bending the extremity of the footstalks, which have been beaten beforehand between two stones, so that they may bend without breaking.

Beside the solitary trunks of this palm-tree, we find dispersed³²⁹ here and there in the steppes a few clumps, real groves³³⁰ (palmares), in which the corypha is intermingled with a tree of the proteaceous family, called chaparro by the natives. It is a new species of rhopala,* with hard and resonant³³¹ leaves. The little groves of rhopala are called chaparales; and it may be supposed that, in a vast plain, where only two or three species of trees are to be found, the chaparro, which affords shade, is considered a highly valuable plant. The corypha spreads through the Llanos of Caracas from Mesa de Peja as far as Guayaval; farther north and north-west, near Guanare and San Carlos, its place is taken by another species of the same genus, with leaves alike palmate but larger. It is called the royal palm of the plains (palma real de los Llanos).* Other palm-trees rise south of Guayaval, especially the piritu with pinnate leaves,* and the moriche (Mauritia flexuosa), celebrated by Father Gumilla under the name of arbol de la vida, or tree of life. It is the sago-tree of America, furnishing flour, wine, thread for weaving hammocks, baskets, nets, and clothing. Its fruit, of the form of the cones of the pine, and covered with scales, perfectly resembles that of the Calamus rotang. It has somewhat the taste of the apple. When arrived at its maturity³³² it is yellow within and red without. The araguato monkeys eat it with avidity; and the nation of the Guaraounos, whose whole existence, it may be said, is closely linked with that of the moriche palm-tree, produce from it a fermented³³³ liquor, slightly acid, and extremely refreshing³³⁴. This palm-tree, with its large shining leaves, folded like a fan, preserves a beautiful verdure at the period of the greatest drought. The mere²⁶ sight of it produces an agreeable sensation of coolness, and when loaded with scaly³³⁵ fruit, it contrasts singularly with the mournful aspect of the palma de cobija, the foliage of which is always grey and covered with dust. The Llaneros believe that the former attracts the vapours in the air;* and that for this reason, water is constantly found at its foot, when dug for to a certain depth. The effect is confounded with the cause. The moriche grows best in moist places; and it may rather be said that the water attracts the tree. The natives of the Orinoco, by analogous reasoning, admit, that the great serpents contribute to preserve humidity in a province. “You would look in vain for water-serpents,” said an old Indian of Javita to us gravely, “where there are no marshes; because the water ceases to collect when you imprudently kill the serpents that attract it.”

[* Resembling the Embothrium, of which we found no species in South America. The embothriums are represented in American vegetation by the genera Lomatia and Oreocallis.]

[* This palm-tree of the plains must not be confounded with the palma real of Caracas and of Curiepe, with pinnate leaves.]

[* Perhaps an Aiphanes.]

[* If the head of the moriche were better furnished with leaves than it generally is, we might perhaps admit that the soil round the tree preserves its humidity through the influence of the shade.]

We suffered greatly from the heat in crossing the Mesa de Calabozo. The temperature of the air augmented sensibly every time that the wind began to blow. The air was loaded with dust; and during these gusts³³⁶ the thermometer rose to 40 or 41°. We went slowly forward, for it would have been dangerous to leave the mules that carried our instruments. Our guides advised us to fill our hats with the leaves of the rhopala, to diminish the action of the solar rays on the hair and the crown of the head. We found relief from this expedient, which was particularly agreeable, when we could procure³³⁷ the thick leaves of the pothos or some other similar plant.

It is impossible to cross these burning plains, without inquiring whether they have always been in the same state; or whether they have been stripped of their vegetation by some revolution of nature. The stratum of mould now found on them is in fact very thin. The natives believe that the palmares and the chaparales (the little groves of palm-trees and rhopala) were more frequent and more extensive before the arrival of the Spaniards. Since the Llanos have been inhabited and peopled with cattle become wild, the savannah is often set on fire, in order to ameliorate the pasturage. Groups of scattered trees are accidentally destroyed with the grasses. The plains were no doubt less bare in the fifteenth century, than they now are; yet the first Conquistadores, who came from Coro, described them then as savannahs, where nothing could be perceived but the sky and the turf, generally destitute of trees, and difficult to traverse on account of the reverberation³³⁸ of heat from the soil. Why does not the great forest of the Orinoco extend to the north, on the left bank of that river? Why does it not fill that vast space that reaches as far as the Cordillera of the coast, and which is fertilized by numerous rivers? These questions are connected with all that relates to the history of our planet. If, indulging in geological reveries, we suppose that the steppes of America, and the desert of Sahara, have been stripped of their vegetation by an irruption of the ocean, or that they formed originally the bottom of an inland sea, we may conceive that thousands of years have not sufficed for the trees and shrubs to advance from the borders of the forests, from the skirts of the plains either naked or covered with turf, toward the centre, and darken so vast a space with their shade. It is more difficult to explain the origin of bare savannahs, encircled by forests, than to recognize the causes that maintain forests and savannahs within their ancient limits, like continents and seas.

We found the most cordial hospitality at Calabozo, in the house of the superintendent³³⁹ of the royal plantations³⁴⁰, Don Miguel Cousin. The town, situated between the banks of the Guarico and the Uritucu, contained at this period only five thousand inhabitants; but everything denoted increasing prosperity. The wealth of most of the inhabitants consists in herds, under the management of farmers, who are called hateros, from the word hato, which signifies in Spanish a house or farm placed in the midst of pastures. The scattered population of the Llanos being accumulated on certain points, principally around towns, Calabozo reckons already five villages or missions in its environs. It is computed³⁴², that 98,000 head of cattle wander in the pastures nearest to the town. It is very difficult to form an exact idea of the herds contained in the Llanos of Caracas, Barcelona, Cumana, and Spanish Guiana. M. Depons, who lived in the town of Caracas longer than I, and whose statistical³⁴³ statements are generally accurate, reckons in those vast plains, from the mouths of the Orinoco to the lake of Maracaybo, 1,200,000 oxen, 180,000 horses, and 90,000 mules. He estimates the produce of these herds at 5,000,000 francs; adding to the value of the exportation the price of the hides consumed in the country. There exist, it is believed, in the Pampas of Buenos Ayres, 12,000,000 cows, and 3,000,000 horses, without comprising in this enumeration the cattle that have no acknowledged proprietor.

I shall not hazard any general estimates, which from their nature are too uncertain; but shall only observe that, in the Llanos of Caracas, the proprietors³⁴⁴ of the great hatos are entirely ignorant of the number of the cattle they possess. They only know that of the young cattle, which are branded every year with a letter or mark peculiar to each herd²⁵². The richest proprietors mark as many as 14,000 head every year; and sell to the number of five or six thousand. According to official documents, the exportation of hides from the whole capitania-general of Caracas amounted annually³⁴⁵ to 174,000 skins of oxen, and 11,500 of goats. When we reflect, that these documents are taken from the books of the custom-houses, where no mention is made of the fraudulent dealings in hides, we are tempted to believe that the estimate of 1,200,000 oxen wandering in the Llanos, from the Rio Carony and the Guarapiche to the lake of Maracaybo, is much underrated. The port of La Guayra alone exported annually from 1789 to 1792, 70,000 or 80,000 hides, entered in the custom-house books, scarcely one-fifth of which was sent to Spain. The exportation from Buenos Ayres, at the end of the eighteenth century, was, according to Don Felix de Azara, 800,000 skins. The hides of Caracas are preferred in the Peninsula to those of Buenos Ayres; because the latter, on account of a longer passage, undergo a loss of twelve per cent in the tanning. The southern part of the savannahs, commonly called the Upper Plains (Llanos de arriba), is very productive in mules and oxen; but the pasturage being in general less good, these animals are obliged to be sent to other plains to be fattened³⁴⁶ before they are sold. The Llano de Monai, and all the Lower Plains (Llanos de abaxo), abound less in herds, but the pastures are so fertile, that they furnish meat of an excellent quality for the supply of the coast. The mules, which are not fit for labour before the fifth year, are purchased on the spot at the price of fourteen or eighteen piastres. The horses of the Llanos, descending from the fine Spanish breed, are not very large; they are generally of a uniform colour, brown bay, like most of the wild animals. Suffering alternately from drought and floods, tormented³⁴⁷ by the stings of insects and the bites of the large bats, they lead a sorry life. After having enjoyed for some months the care of man, their good qualities are developed. Here there are no sheep: we saw flocks only on the table-land of Quito.

The hatos of oxen have suffered considerably of late from troops of marauders, who roam over the steppes killing³¹⁹ the animals merely to take their hides. This robbery has increased since the trade of the Lower Orinoco has become more flourishing. For half a century, the banks of that great river, from the mouth of the Apure as far as Angostura, were known only to the missionary³⁴⁸-monks³⁴⁹. The exportation of cattle took place from the ports of the northern coast only, namely from Cumana, Barcelona, Burburata, and Porto Cabello. This dependence³⁵⁰ on the coast is now much diminished. The southern part of the plains has established an internal communication with the Lower Orinoco; and this trade is the more brisk, as those who devote themselves to it easily escape the trammels of the prohibitory laws.

The greatest herds of cattle in the Llanos of Caracas are those of the hatos of Merecure, La Cruz, Belen, Alta Gracia, and Pavon. The Spanish cattle came from Coro and Tocuyo into the plains. History has preserved the name of the colonist⁵¹ who first conceived the idea of peopling these pasturages, inhabited only by deer, and a large species of cavy.* Christoval Rodriguez sent the first horned cattle into the Llanos, about the year 1548. He was an inhabitant of the town of Tocuyo, and had long resided in New Grenada.

[* The thick-nosed tapir, or river cavy (Cavia capybara), called chiguire in those countries.]

When we hear of the innumerable quantity of oxen, horses, and mules, that are spread over the plains of America, we seem generally to forget that in civilized Europe, on lands of much less extent, there exist, in agricultural countries, quantities no less prodigious. France, according to M. Peuchet, feeds 6,000,000 large horned cattle, of which 3,500,000 are oxen employed in drawing the plough. In the Austrian monarchy³⁵¹, the number of oxen, cows, and calves³⁵², has been estimated at 13,400,000 head. Paris alone consumes annually 155,000 horned cattle. Germany receives 150,000 oxen yearly from Hungary. Domestic animals, collected in small herds, are considered by agricultural nations as a secondary object in the riches of the state. Accordingly they strike the imagination much less than those wandering droves of oxen and horses which alone fill the uncultivated tracts of the New World. Civilization and social order favour alike the progress of population, and the multiplication³⁵³ of animals useful to man.

We found at Calabozo, in the midst of the Llanos, an electrical machine with large plates, electrophori, batteries, electrometers; an apparatus³⁵⁴ nearly as complete as our first scientific men in Europe possess. All these articles had not been purchased in the United States; they were the work of a man who had never seen any instrument, who had no person to consult, and who was acquainted with the phenomena of electricity only by reading the treatise³⁵⁵ of De Lafond, and Franklin’s Memoirs³⁵⁶. Senor Carlos del Pozo, the name of this enlightened and ingenious man, had begun to make cylindrical³⁵⁷ electrical machines, by employing large glass jars, after having cut off the necks. It was only within a few years he had been able to procure, by way of Philadelphia, two plates, to construct a plate machine, and to obtain more considerable effects. It is easy to judge what difficulties Senor Pozo had to encounter, since the first works upon electricity had fallen into his hands, and that he had the courage to resolve to procure himself, by his own industry, all that he had seen described in his books. Till now he had enjoyed only the astonishment and admiration³⁵⁸ produced by his experiments on persons destitute of all information, and who had never quitted the solitude of the Llanos; our abode at Calabozo gave him a satisfaction altogether new. It may be supposed that he set some value on the opinions of two travellers who could compare his apparatus with those constructed in Europe. I had brought with me electrometers mounted with straw, pith-balls, and gold-leaf; also a small Leyden jar which could be charged by friction³⁵⁹ according to the method of Ingenhousz, and which served for my physiological³⁶⁰ experiments. Senor del Pozo could not contain his joy on seeing for the first time instruments which he had not made, yet which appeared to be copied from his own. We also showed him the effect of the contact of heterogeneous³⁶¹ metals on the nerves of frogs. The name of Galvani and Volta had not previously³⁶² been heard in those vast solitudes.

Next to his electrical apparatus, the work of the industry and intelligence of an inhabitant of the Llanos, nothing at Calabozo excited in us so great an interest as the gymnoti, which are animated electrical apparatuses³⁶³. I was impatient, from the time of my arrival at Cumana, to procure electrical eels³⁶⁴. We had been promised them often, but our hopes had always been disappointed. Money loses its value as you withdraw from the coast; and how is the imperturbable³⁶⁵ apathy³⁶⁶ of the ignorant people to be vanquished³⁶⁷, when they are not excited by the desire of gain?

The Spaniards confound all electric fishes under the name of tembladores.* There are some of these in the Caribbean Sea, on the coast of Cumana. The Guayquerie Indians, who are the most skilful and active fishermen in those parts, brought us a fish, which, they said, benumbed their hands. This fish ascends³⁶⁸ the little river Manzanares. It is a new species of ray, the lateral spots of which are scarcely visible, and which much resembles the torpedo³⁶⁹. The torpedos, which are furnished with an electric organ externally visible, on account of the transparency of the skin, form a genus or subgenus different from the rays properly so called.* The torpedo of Cumana was very lively, very energetic in its muscular movements, and yet the electric shocks it gave us were extremely feeble. They became stronger on galvanizing the animal by the contact of zinc³⁷⁰ and gold. Other tembladores, real gymnoti or electric eels, inhabit the Rio Colorado, the Guarapiche, and several little streams which traverse the Missions of the Chayma Indians. They abound also in the large rivers of America, the Orinoco, the Amazon, and the Meta; but the force of the currents and the depth of the water, prevent them from being caught by the Indians. They see these fish less frequently than they feel shocks from them when swimming or bathing in the river. In the Llanos, particularly in the environs of Calabozo, between the farms of Morichal and the Upper and Lower Missions, the basins of stagnant water and the confluents of the Orinoco (the Rio Guarico and the canos Rastro, Berito, and Paloma) are filled with electric eels. We at first wished to make our experiments in the house we inhabited at Calabozo; but the dread³⁷¹ of the shocks caused by the gymnoti is so great, and so exaggerated among the common people, that during three days we could not obtain one, though they are easily caught, and we had promised the Indians two piastres for every strong and vigorous fish. This fear of the Indians is the more extraordinary, as they do not attempt to adopt precautions in which they profess³⁷² to have great confidence. When interrogated³⁷³ on the effect of the tembladores, they never fail to tell the Whites, that they may be touched with impunity³⁷⁴ while you are chewing tobacco. This supposed influence of tobacco on animal electricity is as general on the continent of South America, as the belief among mariners³⁷⁵ of the effect of garlic and tallow on the magnetic needle.

[* Literally³⁷⁶ “tremblers,” or “producers of trembling.”]

[* Cuvier, Regne Animal volume 2. The Mediterranean³⁷⁷ contains, according to M. Risso, four species of electrical torpedos, all formerly confounded under the name of Raia torpedo; these are Torpedo narke, T. unimaculata, T. galvanii, and T. marmorata. The torpedo of the Cape²⁰⁹ of Good Hope, the subject of the recent experiments of Mr. Todd, is, no doubt, a nondescript species.]

Impatient of waiting, and having obtained very uncertain results from an electric eel¹⁸⁸ which had been brought to us alive, but much enfeebled, we repaired to the Cano de Bera, to make our experiments in the open air, and at the edge of the water. We set off on the 19th of March, at a very early hour, for the village of Rastro; thence we were conducted by the Indians to a stream, which, in the time of drought, forms a basin of muddy water, surrounded by fine trees,* the clusia, the amyris, and the mimosa with fragrant³⁷⁸ flowers. To catch the gymnoti with nets is very difficult, on account of the extreme agility³⁷⁹ of the fish, which bury themselves in the mud. We would not employ the barbasco, that is to say, the roots of the Piscidea erithyrna, the Jacquinia armillaris, and some species of phyllanthus, which thrown into the pool, intoxicate³⁸⁰ or benumb the eels. These methods have the effect of enfeebling the gymnoti. The Indians therefore told us that they would “fish with horses,” (embarbascar con¹⁸ caballos.*) We found it difficult to form an idea of this extraordinary manner of fishing; but we soon saw our guides return from the savannah, which they had been scouring³⁸¹ for wild horses and mules. They brought about thirty with them, which they forced to enter the pool.

[* Amyris lateriflora, A. coriacea, Laurus pichurin. Myroxylon secundum, Malpighia reticulata.]

[* Meaning to excite the fish by horses.]

The extraordinary noise caused by the horses’ hoofs³⁸², makes the fish issue from the mud, and excites them to the attack. These yellowish and livid eels, resembling large aquatic³⁸³ serpents, swim on the surface of the water, and crowd under the bellies³⁸⁴ of the horses and mules. A contest between animals of so different an organization presents a very striking spectacle. The Indians, provided with harpoons³⁸⁵ and long slender reeds, surround the pool closely; and some climb up the trees, the branches of which extend horizontally over the surface of the water. By their wild cries, and the length of their reeds, they prevent the horses from running away and reaching the bank of the pool. The eels, stunned³⁸⁶ by the noise, defend themselves by the repeated discharge of their electric batteries. For a long interval they seem likely to prove victorious³⁸⁷. Several horses sink beneath the violence of the invisible strokes which they receive from all sides, in organs the most essential to life; and stunned by the force and frequency of the shocks, they disappear under the water. Others, panting, with mane erect, and haggard eyes expressing anguish⁶⁰ and dismay, raise themselves, and endeavour to flee from the storm by which they are overtaken. They are driven back by the Indians into the middle of the water; but a small number succeed in eluding³⁸⁸ the active vigilance of the fishermen. These regain³⁸⁹ the shore, stumbling at every step, and stretch themselves on the sand, exhausted with fatigue, and with limbs benumbed by the electric shocks of the gymnoti.

In less than five minutes two of our horses were drowned. The eel being five feet long, and pressing itself against the belly³⁹⁰ of the horses, makes a discharge along the whole extent of its electric organ. It attacks at once the heart, the intestines³⁹¹, and the caeliac fold of the abdominal³⁹² nerves. It is natural that the effect felt by the horses should be more powerful than that produced upon man by the touch of the same fish at only one of his extremities. The horses are probably not killed, but only stunned. They are drowned from the impossibility of rising amid the prolonged struggle between the other horses and the eels.

We had little doubt that the fishing would terminate by killing successively all the animals engaged; but by degrees the impetuosity of this unequal combat diminished, and the wearied gymnoti dispersed. They require a long rest, and abundant nourishment, to repair the galvanic force which they have lost.* The mules and horses appear less frightened; their manes are no longer bristled³⁹³, and their eyes express less dread. The gymnoti approach timidly the edge of the marsh¹⁸⁶, where they are taken by means of small harpoons fastened to long cords. When the cords are very dry the Indians feel no shock in raising the fish into the air. In a few minutes we had five large eels, most of which were but slightly wounded. Some others were taken, by the same means, towards evening.

[* The Indians assured us that when the horses are made to run two days successively into the same pool, none are killed the second day. See, on the fishing for gymnoti Views of Nature Bohn’s edition page 18.]

The temperature of the waters in which the gymnoti habitually³⁹⁴ live, is from 26 to 27°. Their electric force diminishes it is said, in colder waters; and it is remarkable that, in general, animals endowed with electromotive organs, the effects of which are sensible to man, are not found in the air, but in a fluid that is a conductor of electricity. The gymnotus is the largest of electrical fishes. I measured some that were from five feet to five feet three inches long; and the Indians assert that they have seen them still larger. We found that a fish of three feet ten inches long weighed twelve pounds. The transverse diameter of the body, without reckoning the anal fin⁸⁵, which is elongated³⁹⁵ in the form of a keel, was three inches and a half. The gymnoti of the Cano de Bera are of a fine olive-green. The under part of the head is yellow mingled with red. Two rows of small yellow spots are placed symmetrically along the back, from the head to the end of the tail. Every spot contains an excretory aperture³⁹⁶. In consequence, the skin of the animal is constantly covered with a mucous³⁹⁷ matter, which, as Volta has proved, conducts electricity twenty or thirty times better than pure water. It is in general somewhat remarkable, that no electric fish yet discovered in the different parts of the world, is covered with scales.*

[* We yet know with certainty only seven electric fishes; Torpedo narke, Risso, T. unimaculata, T. marmorata, T. galvanii, Silurus electricus, Tetraodon electricus, Gymnotus electricus. It appears uncertain whether the Trichiurus indicus has electrical properties or not. See Cuvier’s Regne Animal volume 2. But the genus Torpedo, very different from that of the rays properly so called, has numerous species in the equatorial seas; and it is probable that there exist several gymnoti specifically different. The Indians mentioned to us a black and very powerful species, inhabiting the marshes of the Apure, which never attains³⁹⁸ a length of more than two feet, but which we were not able to procure. The raton of the Rio de la Magdalena, which I have described under the name of Gymnotus aequilabiatus (Observations de Zoologie volume 1) forms a particular sub-genus. This is a Carapa, not scaly, and without an electric organ. This organ is also entirely wanting in the Brazilian Carapo, and in all the rays which were carefully examined by Cuvier.]

The gymnoti, like our eels, are fond of swallowing and breathing air on the surface of the water; but we must not thence conclude that the fish would perish if it could not come up to breathe the air. The European eel will creep during the night upon the grass; but I have seen a very vigorous gymnotus that had sprung out of the water, die on the ground. M. Provencal and myself have proved by our researches on the respiration³⁹⁹ of fishes, that their humid bronchiae perform the double function of decomposing⁴⁰⁰ the atmospheric⁴⁰¹ air, and of appropriating the oxygen contained in water. They do not suspend their respiration in the air; but they absorb the oxygen like a reptile⁴⁰² furnished with lungs. It is known that carp may be fattened by being fed, out of the water, if their gills are wet from time to time with humid moss⁴⁰³, to prevent them from becoming dry. Fish separate their gill-covers wider in oxygen gas than in water. Their temperature however, does not rise; and they live the same length of time in pure vital air, and in a mixture of ninety parts nitrogen and ten oxygen. We found that tench placed under inverted jars filled with air, absorb half a cubic centimetre of oxygen in an hour. This action takes place in the gills only; for fishes on which a collar of cork⁴⁰⁴ has been fastened, and leaving their head out of the jar filled with air, do not act upon the oxygen by the rest of their body.

The swimming-bladder of the gymnotus is two feet five inches long in a fish of three feet ten inches.* It is separated by a mass of fat from the external skin; and rests upon the electric organs, which occupy more than two-thirds of the animal’s body. The same vessels⁴⁰⁵ which penetrate²⁰³ between the plates or leaves of these organs, and which cover them with blood when they are cut transversely, also send out numerous branches to the exterior⁴⁰⁷ surface of the air-bladder. I found in a hundred parts of the air of the swimming-bladder four of oxygen and ninety-six of nitrogen. The medullary substance of the brain displays but a feeble analogy with the albuminous and gelatinous matter of the electric organs. But these two substances have in common the great quantity of arterial blood which they receive, and which is deoxidated in them. We may again remark, on this occasion, that an extreme activity in the functions of the brain causes the blood to flow more abundantly towards the head, as the energy of the movement of the muscles accelerates the deoxidation of the arterial blood. What a contrast between the multitude and the diameter of the blood-vessels of the gymnotus, and the small space occupied by its muscular system! This contrast reminds the observer, that three functions of animal life, which appear in other respects sufficiently distinct — the functions of the brain, those of the electrical organ, and those of the muscles, all require the afflux and concourse of arterial or oxygenated blood.

[* Cuvier has shown that in the Gymnotus electricus there exists, besides the large swimming-bladder, another situated before it, and much smaller. It looks like the bifurcated⁴⁰⁸ swimming-bladder in the Gymnotus aequilabiatus.]

It would be temerity⁴⁰⁹ to expose ourselves to the first shocks of a very large and strongly irritated gymnotus. If by chance a stroke be received before the fish is wounded or wearied by long pursuit, the pain and numbness⁴¹⁰ are so violent that it is impossible to describe the nature of the feeling they excite. I do not remember having ever received from the discharge of a large Leyden jar, a more dreadful shock than that which I experienced by imprudently placing both my feet on a gymnotus just taken out of the water. I was affected during the rest of the day with a violent pain in the knees, and in almost every joint¹²⁹. To be aware of the difference that exists between the sensation produced by the Voltaic battery and an electric fish, the latter should be touched when they are in a state of extreme weakness. The gymnoti and the torpedos then cause a twitching⁴¹¹ of the muscles, which is propagated from the part that rests on the electric organs, as far as the elbow. We seem to feel, at every stroke, an internal vibration⁴¹², which lasts two or three seconds, and is followed by a painful numbness. Accordingly, the Tamanac Indians call the gymnotus, in their expressive language, arimna, which means something that deprives of motion.

The sensation caused by the feeble shocks of an electric eel appeared to me analogous to that painful twitching with which I have been seized at each contact of two heterogeneous metals applied to wounds which I had made on my back by means of cantharides. This difference of sensation between the effects of electric fishes and those of a Voltaic battery or a Leyden jar feebly charged has struck every observer; there is, however, nothing in this contrary to the supposition of the identity of electricity and the galvanic action of fishes. The electricity may be the same; but its effects will be variously modified by the disposition of the electrical apparatus, by the intensity⁴¹³ of the fluid, by the rapidity of the current, and by the particular mode of action.

In Dutch Guiana, at Demerara for instance, electric eels were formerly employed to cure paralytic⁴¹⁴ affections. At a time when the physicians of Europe had great confidence in the effects of electricity, a surgeon of Essequibo, named Van der Lott, published in Holland a treatise on the medical properties of the gymnotus. These electric remedies are practised among the savages⁴¹⁵ of America, as they were among the Greeks. We are told by Scribonius Largus, Galen, and Dioscorides, that torpedos cure the headache and the gout. I did not hear of this mode of treatment in the Spanish colonies which I visited; and I can assert that, after having made experiments during four hours successively with gymnoti, M. Bonpland and myself felt, till the next day, a debility in the muscles, a pain in the joints⁴¹⁶, and a general uneasiness, the effect of a strong irritation⁴¹⁷ of the nervous system.

The gymnotus is neither a charged conductor, nor a battery, nor an electromotive apparatus, the shock of which is received every time they are touched with one hand, or when both hands are applied to form a conducting circle between the opposite poles. The electric action of the fish depends entirely on its will; because it does not keep its electric organs always charged, or whether by the secretion⁴¹⁸ of some fluid, or by any other means alike mysterious to us, it be capable of directing the action of its organs to an external object. We often tried, both insulated and otherwise, to touch the fish, without feeling the least shock. When M. Bonpland held it by the head, or by the middle of the body, while I held it by the tail, and, standing on the moist ground, did not take each other’s hand, one of us received shocks, which the other did not feel. It depends upon the gymnotus to direct its action towards the point where it finds itself most strongly irritated. The discharge is then made at one point only, and not at the neighbouring points. If two persons touch the belly of the fish with their fingers, at an inch distance, and press it simultaneously⁴¹⁹, sometimes one, sometimes the other, will receive the shock. In the same manner, when one insulated person holds the tail of a vigorous gymnotus, and another pinches the gills or pectoral fin, it is often the first only by whom the shock is received. It did not appear to us that these differences could be attributed to the dryness or moisture of our hands, or to their unequal conducting power. The gymnotus seemed to direct its strokes sometimes from the whole surface of its body, sometimes from one point only. This effect indicates less a partial discharge of the organ composed of an innumerable quantity of layers, than the faculty⁴²⁰ which the animal possesses, (perhaps by the instantaneous secretion of a fluid spread through the cellular membrane⁴²¹,) of establishing the communication between its organs and the skin only, in a very limited space.

Nothing proves more strongly the faculty, which the gymnotus possesses, of darting⁴²³ and directing its stroke at will, than the observations made at Philadelphia and Stockholm,* on gymnoti rendered extremely tame. When they had been made to fast a long time, they killed small fishes put into the tub. They acted from a distance; that is to say, their electrical shock passed through a very thick stratum of water. We need not be surprised that what was observed in Sweden, on a single gymnotus only, we could not perceive in a great number of individuals in their native country. The electric action of animals being a vital action, and subject to their will, it does not depend solely⁴²⁴ on their state of health and vigour⁴²⁵. A gymnotus that has been kept a long time in captivity⁴²⁶, accustoms⁴²⁷ itself to the imprisonment⁴²⁸ to which it is reduced; it resumes by degrees the same habits in the tub, which it had in the rivers and marshes. An electrical eel was brought to me at Calabozo: it had been taken in a net, and consequently having no wound. It ate meat, and terribly frightened the little tortoises and frogs which, not aware of their danger, placed themselves on its back. The frogs did not receive the stroke till the moment when they touched the body of the gymnotus. When they recovered, they leaped out of the tub; and when replaced near the fish, they were frightened at the mere sight of it. We then observed nothing that indicated an action at a distance; but our gymnotus, recently taken, was not yet sufficiently tame to attack and devour⁴²⁹ frogs. On approaching the finger, or the metallic points, very close to the electric organs, no shock was felt. Perhaps the animal did not perceive the proximity⁴³⁰ of a foreign body; or, if it did, we must suppose that in the commencement of its captivity, timidity prevented it from darting forth its energetic strokes except when strongly irritated by an immediate⁴³¹ contact. The gymnotus being immersed in water, I placed my hand, both armed and unarmed with metal, within a very small distance from the electric organs; yet the strata of water transmitted no shock, while M. Bonpland irritated the animal strongly by an immediate contact, and received some very violent shocks. Had we placed a very delicate electroscope in the contiguous strata of water, it might possibly have been influenced at the moment when the gymnotus seemed to direct its stroke elsewhere. Prepared frogs, placed immediately on the body of a torpedo, experience, according to Galvani, a strong contraction at every discharge of the fish.

[* By MM. Williamson and Fahlberg. The following account is given by the latter gentleman. “The gymnotus sent from Surinam to M. Norderling, at Stockholm, lived more than four months in a state of perfect health. It was twenty-seven inches long; and the shocks it gave were so violent, especially in the open air, that I found scarcely any means of protecting myself by non-conductors, in transporting the fish from one place to another. Its stomach being very small, it ate little at a time, but fed often. It approached living fish, first sending them from afar a shock, the energy of which was proportionate to the size of the prey⁴³². The gymnotus seldom failed in its aim; one single stroke was almost always sufficient to overcome the resistance which the strata of water, more or less thick according to the distance, opposed to the electrical current. When very much pressed by hunger, it sometimes directed the shocks against the person who daily brought its food of boiled meat. Persons afflicted⁴³³ with rheumatism⁴³⁴ came to touch it in hopes of being cured. They took it at once by the neck and tail the shocks were in this case stronger than when touched with one hand only. It almost entirely lost its electrical power a short time before its death.”]

The electrical organ of the gymnoti acts only under the immediate influence of the brain and the heart. On cutting a very vigorous fish through the middle of the body, the fore¹¹ part alone gave shocks. These are equally strong in whatever part of the body the fish is touched; it is most disposed, however, to emit them when the pectoral fin, the electrical organ, the lips, the eyes, or the gills, are pinched. Sometimes the animal struggles violently with a person holding it by the tail, without communicating the least shock. Nor did I feel any when I made a slight incision⁴³⁵ near the pectoral fin of the fish, and galvanized the wound by the contact of two pieces of zinc and silver. The gymnotus bent²⁹⁶ itself convulsively, and raised its head out of the water, as if terrified by a sensation altogether new; but I felt no vibration in the hands which held the two metals. The most violent muscular movements are not always accompanied by electric discharges.

The action of the fish on the human organs is transmitted and intercepted⁴³⁶ by the same bodies that transmit and intercept⁴³⁷ the electrical current of a conductor charged by a Leyden jar, or Voltaic battery. Some anomalies, which we thought we observed, are easily explained, when we recollect⁴³⁸ that even metals (as is proved from their ignition when exposed to the action of the battery) present a slight obstacle to the passage of electricity; and that a bad conductor annihilates⁴³⁹ the effect, on our organs, of a feeble electric charge, whilst it transmits to us the effect of a very strong one. The repulsive⁴⁴⁰ force which zinc and silver exercise together being far superior to that of gold and silver, I have found that when a frog, prepared and armed with silver, is galvanized under water, the conducting arc of zinc produces contraction as soon as one of its extremities approaches the muscles within three lines distance; while an arc of gold does not excite the organs, when the stratum of water between the gold and the muscles is more than half a line thick. In the same manner, by employing a conducting arc composed of two pieces of zinc and silver soldered⁴⁴¹ together endways; and resting, as before, one of the extremities of the metallic circuit on the femoral nerve, it is necessary, in order to produce contractions⁴⁴², to bring the other extremity of the conductor nearer and nearer to the muscles, in proportion as the irritability⁴⁴³ of the organs diminishes. Toward the end of the experiment the slightest stratum of water prevents the passage of the electrical current, and it is only by the immediate contact of the arc with the muscles, that the contractions take place. These effects are, however, dependent on three variable circumstances; the energy of the electromotive apparatus, the conductibility of the medium, and the irritability of the organs which receive the impressions: it is because experiments have not been sufficiently multiplied with a view to these three variable elements, that, in the action of electric eels and torpedos, accidental circumstances have been taken for absolute conditions, without which the electric shocks are not felt.

In wounded gymnoti, which give feeble but very equal shocks, these shocks appeared to us constantly stronger on touching⁴⁴⁴ the body of the fish with a hand armed with metal, than with the naked hand. They are stronger also, when, instead of touching the fish with one hand, naked, or armed with metal, we press it at once with both hands, either naked or armed. These differences become sensible only when one has gymnoti enough at disposal to be able to choose the weakest; and when the extreme equality of the electric discharges admits of distinguishing between the sensations felt alternately by the hand naked or armed with a metal, by one or both hands naked, and by one or both hands armed with metal. It is also in the case only of small shocks, feeble and uniform, that they are more sensible on touching the gymnotus with one hand (without forming a chain) with zinc, than with copper or iron.

Resinous⁴⁴⁵ substances, glass, very dry wood, horn, and even bones, which are generally believed to be good conductors, prevent the action of the gymnoti from being transmitted to man. I was surprised at not feeling the least shock on pressing wet sticks of sealing-wax against the organs of the fish, while the same animal gave me the most violent strokes, when excited by means of a metallic rod. M. Bonpland received shocks, when carrying a gymnotus on two cords of the fibres of the palm-tree, which appeared to us extremely dry. A strong discharge makes its way through very imperfect conductors. Perhaps also the obstacle which the conductor presents renders the discharge more painful. I touched the gymnotus with a wet pot of brown clay, without effect; yet I received violent shocks when I carried the gymnotus in the same pot, because the contact was greater.

When two persons, insulated or otherwise, hold each other’s hands, and only one of these persons touches the fish with the hand, either naked or armed with metal, the shock is most commonly felt by both at once. However, it sometimes happens that, in the most severe shocks, the person who comes into immediate contact with the fish alone feels them. When the gymnotus is exhausted, or in a very reduced state of excitability, and will no longer emit strokes on being irritated with one hand, the shocks are felt in a very vivid manner, on forming the chain, and employing both hands. Even then, however, the electric shock takes place only at the will of the animal. Two persons, one of whom holds the tail, and the other the head, cannot, by joining hands and forming a chain, force the gymnotus to dart⁴²² his stroke.

Though employing the most delicate electrometers in various ways, insulating them on a plate of glass, and receiving very strong shocks which passed through the electrometer, I could never discover any phenomenon of attraction or repulsion. The same observation was made by M. Fahlberg at Stockholm. That philosopher, however, has seen an electric spark, as Walsh and Ingenhousz had before him, in London, by placing the gymnotus in the air, and interrupting the conducting chain by two gold leaves pasted upon glass, and a line distant from each other. No person, on the contrary, has ever perceived a spark issue from the body of the fish itself. We irritated it for a long time during the night, at Calabozo, in perfect darkness, without observing any luminous⁴⁴⁶ appearance. Having placed four gymnoti, of unequal strength, in such a manner as to receive the shocks of the most vigorous fish by contact, that is to say, by touching only one of the other fishes, I did not observe that these last were agitated⁴⁴⁷ at the moment when the current passed their bodies. Perhaps the current did not penetrate below the humid surface of the skin. We will not, however, conclude from this, that the gymnoti are insensible to electricity; and that they cannot fight with each other at the bottom of the pools. Their nervous system must be subject to the same agents as the nerves of other animals. I have indeed seen, that, on laying open their nerves, they undergo muscular contractions at the mere contact of two opposite metals; and M. Fahlberg, of Stockholm, found that his gymnotus was convulsively agitated when placed in a copper vessel⁴⁰⁶, and feeble discharges from a Leyden jar passed through its skin.

After the experiments I had made on gymnoti, it became highly interesting to me, on my return to Europe, to ascertain⁴⁴⁸ with precision the various circumstances in which another electric fish, the torpedo of our seas, gives or does not give shocks. Though this fish had been examined by numerous men of science, I found all that had been published on its electrical effects extremely vague. It has been very arbitrarily supposed, that this fish acts like a Leyden jar, which may be discharged at will, by touching it with both hands; and this supposition appears to have led into error observers who have devoted⁴⁴⁹ themselves to researches of this kind. M. Gay–Lussac and myself, during our journey to Italy, made a great number of experiments on torpedos taken in the gulf²³⁵ of Naples. These experiments furnish many results somewhat different from those I collected on the gymnoti. It is probable that the cause of these anomalies is owing rather to the inequality of electric power in the two fishes, than to the different disposition of their organs.

Though the power of the torpedo cannot be compared with that of the gymnotus, it is sufficient to cause very painful sensations. A person accustomed to electric shocks can with difficulty hold in his hands a torpedo of twelve or fourteen inches, and in possession of all its vigour. When the torpedo gives only very feeble strokes under water, they become more sensible if the animal be raised above the surface. I have often observed the same phenomenon in experimenting on frogs.

The torpedo moves the pectoral fins⁴⁵⁰ convulsively every time it emits a stroke; and this stroke is more or less painful, according as the immediate contact takes place by a greater or less surface. We observed that the gymnotus gives the strongest shocks without making any movement with the eyes, head, or fins.* Is this difference caused by the position of the electric organ, which is not double in the gymnoti? or does the movement of the pectoral fins of the torpedo directly prove that the fish restores the electrical equilibrium by its own skin, discharges itself by its own body, and that we generally feel only the effect of a lateral shock?

[* The anal fin of the gymnoti only has a sensible motion when these fishes are excited under the belly, where the electric organ is placed.]

We cannot discharge at will either a torpedo or a gymnotus, as we discharge at will a Leyden jar or a Voltaic battery. A shock is not always felt, even on touching the electric fish with both hands. We must irritate it to make it give the shock. This action in the torpedos, as well as in the gymnoti, is a vital action; it depends on the will only of the animal, which perhaps does not always keep its electric organs charged, or does not always employ the action of its nerves to establish the chain between the positive and negative poles. It is certain that the torpedo gives a long series of shocks with astonishing celerity; whether it is that the plates or laminae of its organs are not wholly exhausted, or that the fish recharges them instantaneously.

The electric stroke is felt, when the animal is disposed to give it, whether we touch with a single finger only one of the surfaces of the organs, or apply both hands to the two surfaces, the superior and inferior, at once. In either case it is altogether indifferent whether the person who touches the fish with one finger or both hands be insulated or not. All that has been said on the necessity of a communication with the damp ground to establish a circuit, is founded on inaccurate⁴⁵¹ observations.

M. Gay–Lussac made the important observation that when an insulated person touches the torpedo with one finger, it is indispensible that the contact be direct. The fish may with impunity be touched with a key, or any other metallic instrument; no shock is felt when a conducting or non-conducting body is interposed between the finger and the electrical organ of the torpedo. This circumstance proves a great difference between the torpedo and the gymnotus, the latter giving his strokes through an iron rod several feet long.

When the torpedo is placed on a metallic plate of very little thickness, so that the plate touches the inferior surface of the organs, the hand that supports the plate never feels any shock, though another insulated person may excite the animal, and the convulsive movement of the pectoral fins may denote the strongest and most reiterated⁴⁵² discharges.

If, on the contrary, a person support the torpedo placed upon a metallic plate, with the left hand, as in the foregoing experiment, and the same person touch the superior surface of the electrical organ with the right hand, a strong shock is then felt in both arms. The sensation is the same when the fish is placed between two metallic plates, the edges of which do not touch, and the person applies both hands at once to these plates. The interposition of one metallic plate prevents the communication if that plate be touched with one hand only, while the interposition of two metallic plates does not prevent the shock when both hands are applied. In the latter case it cannot be doubted that the circulation of the fluid is established by the two arms.

If, in this situation of the fish between two plates, there exist any immediate communication between the edges of these two plates, no shock takes place. The chain between the two surfaces of the electric organ is then formed by the plates, and the new communication, established by the contact of the two hands with the two plates, remains without effect. We carried the torpedo with impunity between two plates of metal, and felt the strokes it gave only at the instant when they ceased to touch each other at the edges.

Nothing in the torpedo or in the gymnotus indicates that the animal modifies the electrical state of the bodies by which it is surrounded. The most delicate electrometer is no way affected in whatever manner it is employed, whether bringing it near the organs or insulating the fish, covering it with a metallic plate, and causing the plate to communicate by a conducting wire with the condenser⁴⁵³ of Volta. We were at great pains to vary the experiments by which we sought to render the electrical tension of the torpedo sensible; but they were constantly without effect, and perfectly confirmed what M. Bonpland and myself had observed respecting the gymnoti, during our abode in South America.

Electrical fishes, when very vigorous, act with equal energy under water and in the air. This observation led us to examine the conducting property of water; and we found that, when several persons form the chain between the superior and inferior surface of the organs of the torpedo, the shock is felt only when these persons join hands. The action is not intercepted if two persons, who support the torpedo with their right hands, instead of taking one another by the left hand, plunge each a metallic point into a drop of water placed on an insulating substance. On substituting flame for the drop of water, the communication is interrupted, and is only re-established, as in the gymnotus, when the two points immediately touch each other in the interior of the flame.

We are, doubtless, very far from having discovered all the secrets of the electrical action of fishes which is modified by the influence of the brain and the nerves; but the experiments we have just described are sufficient to prove that these fishes act by a concealed electricity, and by electromotive organs of a peculiar construction, which are recharged with extreme rapidity. Volta admits that the discharges of the opposite electricities in the torpedos and the gymnoti are made by their own skin, and that when we touch them with one hand only, or by means of a metallic point, we feel the effect of a lateral shock, the electrical current not being directed solely the shortest way. When a Leyden jar is placed on a wet woollen cloth (which is a bad conductor), and the jar is discharged in such a manner that the cloth makes part of the chain, prepared frogs, placed at different distances, indicate by their contractions that the current spreads itself over the whole cloth in a thousand different ways. According to this analogy, the most violent shock given by the gymnotus at a distance would be but a feeble part of the stroke which re-establishes the equilibrium in the interior of the fish.* As the gymnotus directs its stroke wherever it pleases, it must also be admitted that the discharge is not made by the whole skin at once, but that the animal, excited perhaps by the motion of a fluid poured into one part of the cellular membrane, establishes at will the communication between its organs and some particular part of the skin. It may be conceived that a lateral stroke, out of the direct current, must become imperceptible under the two conditions of a very weak discharge, or a very great obstacle presented by the nature and length of the conductor. Notwithstanding these considerations, it appears to me very surprising that shocks of the torpedo, strong in appearance, are not propagated to the hand when a very thin plate of metal is interposed between it and the fish.

[* The heterogeneous poles of the double electrical organs must exist in each organ. Mr. Todd has recently proved, by experiments made on torpedos at the Cape of Good Hope, that the animal continues to give violent shocks when one of these organs is extirpated⁴⁵⁵. On the contrary, all electrical action is stopped (and this point, as elucidated⁴⁵⁶ by Galvani, is of the greatest importance) if injury be inflicted⁴⁵⁷ on the brain, or if the nerves which supply the plates of the electrical organs be divided. In the latter case, the nerves being cut, and the brain left untouched, the torpedo continues to live, and perform every muscular movement. A fish, exhausted by too numerous electrical discharges, suffered much more than another fish deprived, by dividing the nerves, of any communication between the brain and the electromotive apparatus. Philosophical⁴⁵⁸ Transactions 1816.]

Schilling declared that the gymnotus approached the magnet involuntarily. We tried in a thousand ways this supposed influence of the magnet on the electrical organs, without having ever observed any sensible effect. The fish no more approached the magnet, than a bar of iron not magnetic. Iron-filings, thrown on its back, remained motionless.

The gymnoti, which are objects of curiosity and of the deepest interest to the philosophers of Europe, are at once dreaded⁴⁵⁹ and detested by the natives. They furnish, indeed, in their muscular flesh, pretty good aliment; but the electric organ fills the greater part of their body, and this organ is slimy, and disagreeable to the taste; it is accordingly separated with care from the rest of the eel. The presence of gymnoti is also considered as the principal cause of the want of fish in the ponds and pools of the Llanos. They, however, kill many more than they devour: and the Indians told us, that when young alligators and gymnoti are caught at the same time in very strong nets, the latter never show the slightest trace of a wound, because they disable the young alligators before they are attacked by them. All the inhabitants of the waters dread the society of the gymnoti. Lizards⁴⁶¹, tortoises, and frogs, seek pools where they are secure from the electric action. It became necessary to change the direction of a road near Uritucu, because the electric eels were so numerous in one river, that they every year killed a great number of mules, as they forded the water with their burdens.

Though in the present state of our knowledge we may flatter ourselves with having thrown some light on the extraordinary effects of electric fishes, yet a vast number of physical and physiological researches still remain to be made. The brilliant results which chemistry has obtained by means of the Voltaic battery, have occupied all observers, and turned attention for some time from the examinations of the phenomena of vitality⁴⁶². Let us hope that these phenomena, the most awful and the most mysterious of all, will in their turn occupy the earnest attention of natural philosophers. This hope will be easily realized if they succeed in procuring⁴⁶³ anew living gymnoti in some one of the great capitals of Europe. The discoveries that will be made on the electromotive apparatus of these fish, much more energetic, and more easy of preservation⁴⁶⁴, than the torpedos,* will extend to all the phenomena of muscular motion subject to volition⁴⁶⁵. It will perhaps be found that, in most animals, every contraction of the muscular fibre is preceded by a discharge from the nerve into the muscle; and that the mere simple contact of heterogeneous substances is a source of movement and of life in all organized beings. Did an ingenious and lively people, the Arabians, guess from remote antiquity⁴⁶⁶, that the same force which inflames⁴⁶⁷ the vault of Heaven in storms, is the living and invisible weapon of inhabitants of the waters? It is said, that the electric fish of the Nile bears a name in Egypt, that signifies thunder.*

[* In order to investigate the phenomena of the living electromotive apparatus in its greatest simplicity⁴⁶⁸, and not to mistake for general conditions circumstances which depend on the degree of energy of the electric organs, it is necessary to perform the experiments on those electrical fishes most easily tamed. If the gymnoti were not known, we might suppose, from the observations made on torpedos, that fishes cannot give their shocks from a distance through very thick strata of water, or through a bar of iron, without forming a circuit. Mr. Williamson has felt strong shocks when he held only one hand in the water, and this hand, without touching the gymnotus, was placed between it and the small fish towards which the stroke was directed from ten or fifteen inches distance. Philosophical Transactions volume 65 pages 99 and 108. When the gymnotus was enfeebled by bad health, the lateral shock was imperceptible; and in order to feel the shock, it was necessary to form a chain, and touch the fish with both hands at once. Cavendish, in his ingenious experiments on an artificial torpedo, had well remarked these differences, depending on the greater or less energy of the charge. Philosophical Transactions 1776 page 212.]

[* It appears, however, that a distinction is to be made between rahd, thunder, and rahadh, the electrical fish; and that this latter word means simply that which causes trembling.]

We left the town of Calabozo on the 24th of March, highly satisfied with our stay, and the experiments we had made on an object so worthy of the attention of physiologists⁴⁶⁹. I had besides obtained some good observations of the stars; and discovered with surprise, that the errors of maps amounted here also to a quarter of a degree of latitude. No person had taken an observation before me on this spot; and geographers, magnifying as usual the distance from the coast to the islands, have carried back beyond measure all the localities towards the south.

As we advanced into the southern part of the Llanos, we found the ground more dusty, more destitute of herbage, and more cracked by the effect of long drought. The palm-trees disappeared by degrees. The thermometer kept, from eleven in the morning till sunset, at 34 or 35°. The calmer the air appeared at eight or ten feet high, the more we were enveloped in those whirlwinds of dust, caused by the little currents of air that sweep the ground. About four o’clock in the afternoon, we found a young Indian girl stretched upon the savannah. She was almost in a state of nudity, and appeared to be about twelve or thirteen years of age. Exhausted with fatigue and thirst, her eyes, nostrils⁴⁷⁰, and mouth filled with dust, she breathed with a rattling⁴⁷¹ in her throat, and was unable to answer our questions. A pitcher⁴⁷², overturned, and half filled with sand, was lying at her side. Happily one of our mules was laden⁴⁷³ with water; and we roused the girl from her lethargic⁴⁷⁴ state by bathing her face, and forcing her to drink a few drops of wine. She was at first alarmed on seeing herself surrounded by so many persons; but by degrees she took courage, and conversed⁴⁷⁵ with our guides. She judged, from the position of the sun, that she must have remained during several hours in that state of lethargy. We could not prevail on her to mount one of our beasts of burden, and she would not return to Uritucu. She had been in service at a neighbouring farm; and she had been discharged, because at the end of a long sickness she was less able to work than before. Our menaces and prayers were alike fruitless; insensible to suffering, like the rest of her race, she persisted in her resolution of going to one of the Indian Missions near the city of Calabozo. We removed the sand from her pitcher, and filled it with water. She resumed her way along the steppe, before we had remounted our horses, and was soon separated from us by a cloud of dust. During the night we forded the Rio Uritucu, which abounds⁴⁷⁶ with a breed of crocodiles remarkable for their ferocity. We were advised to prevent our dogs from going to drink in the rivers, for it often happens that the crocodiles of Uritucu come out of the water, and pursue dogs upon the shore. This intrepidity⁴⁷⁷ is so much the more striking, as at eight leagues distance, the crocodiles of the Rio Tisnao are extremely timid, and little dangerous. The manners of animals vary in the same species according to local circumstances difficult to be determined⁴⁷⁸. We were shown a hut, or rather a kind of shed, in which our host of Calabozo, Don Miguel Cousin, had witnessed a very extraordinary scene. Sleeping with one of his friends on a bench or couch covered with leather, Don Miguel was awakened early in the morning by a violent shaking and a horrible noise. Clods of earth were thrown into the middle of the hut. Presently a young crocodile two or three feet long issued from under the bed, darted⁴⁷⁹ at a dog which lay on the threshold of the door, and, missing him in the impetuosity of his spring, ran towards the beach to gain the river. On examining the spot where the barbacoa, or couch, was placed, the cause of this strange adventure was easily discovered. The ground was disturbed to a considerable depth. It was dried mud, which had covered the crocodile in that state of lethargy, or summer-sleep, in which many of the species lie during the absence of the rains in the Llanos. The noise of men and horses, perhaps the smell of the dog, had aroused the crocodile. The hut being built at the edge of the pool, and inundated⁴⁸⁰ during part of the year, the crocodile had no doubt entered, at the time of the inundation²⁵⁴ of the savannahs, by the same opening at which it was seen to go out. The Indians often find enormous boas, which they call uji, or water-serpents,* in the same lethargic state. To reanimate them, they must be irritated, or wetted with water. Boas are killed, and immersed in the streams, to obtain, by means of putrefaction⁴⁸¹, the tendinous parts of the dorsal⁴⁸² muscles, of which excellent guitar-strings are made at Calabozo, preferable to those furnished by the intestines of the alouate monkeys.

[* Culebra de agua, named by the common people traga-venado, the swallower of stags. The word uji belongs to the Tamanac language.]

The drought and heat of the Llanos act like cold upon animals and plants. Beyond the tropics the trees lose their leaves in a very dry air. Reptiles⁴⁸³, particularly crocodiles and boas, having very indolent habits, leave with reluctance⁴⁸⁴ the basins in which they have found water at the period of great inundations. In proportion as the pools become dry, these animals penetrate into the mud, to seek that degree of humidity which gives flexibility⁴⁸⁵ to their skin and integuments. In this state of repose³⁰⁹ they are seized with stupefaction; but possibly they preserve a communication with the external air; and, however little that communication may be, it possibly suffices to keep up the respiration of an animal of the saurian family, provided with enormous pulmonary sacs, exerting no muscular motion, and in which almost all the vital functions are suspended. It is probable that the mean temperature of the dried mud, exposed to the solar rays, is more than 40°. When the north of Egypt, where the coolest month does not fall below 13.4°, was inhabited by crocodiles, they were often found torpid⁴⁸⁶ with cold. They were subject to a winter-sleep, like the European frog, lizard⁴⁶⁰, sand-martin, and marmot. If the hibernal lethargy be observed, both in cold-blooded and in hot-blooded animals, we shall be less surprised to learn, that these two classes furnish alike examples of a summer-sleep. In the same manner as the crocodiles of South America, the tanrecs, or Madagascar hedgehogs, in the midst of the torrid zone, pass three months of the year in lethargy.

On the 25th of March we traversed the smoothest part of the steppes of Caracas, the Mesa de Pavones. It is entirely destitute of the corypha and moriche palm-trees. As far as the eye can reach, not a single object fifteen inches high can be discovered. The air was clear, and the sky of a very deep blue; but the horizon reflected a livid and yellowish light, caused no doubt by the quantity of sand suspended in the atmosphere. We met some large herds of cattle, and with them flocks of birds of a black colour with an olive shade. They are of the genus Crotophaga,* and follow the cattle. We had often seen them perched on the backs of cows, seeking for gadflies and other insects. Like many birds of these desert places, they fear so little the approach of man, that children often catch them in their hands. In the valleys of Aragua, where they are very common, we have seen them perch⁴⁸⁷ upon the hammocks on which we were reposing⁴⁸⁸, in open day.

[* The Spanish colonists call the Crotophaga ani, zamurito (little carrion⁴⁸⁹ vulture — Vultur aura minuta), or garapatero, the eater of garaparas, insects of the Acarus family.]

We discover, between Calabozo, Uritucu, and the Mesa de Pavones, wherever there are excavations⁴⁹⁰ of some feet deep, the geological constitution of the Llanos. A formation of red sandstone (ancient conglomerate) covers an extent of several thousand square leagues. We shall find it again in the vast plains of the Amazon, on the eastern boundary of the province of Jaen de Bracamoros. This prodigious extension of red sandstone in the low grounds stretching along the east of the Andes, is one of the most striking phenomena I observed during my examination of rocks in the equinoctial regions.

The red sandstone of the Llanos of Caracas lies in a concave position, between the primitive mountains of the shore and of Parime. On the north it is backed by the transition-slates,* and on the south it rests immediately on the granites⁴⁹¹ of the Orinoco. We observed in it rounded fragments of quartz (kieselschiefer), and Lydian stone, cemented by an olive-brown ferruginous clay. The cement is sometimes of so bright a red that the people of the country take it for cinnabar. We met a Capuchin monk¹³ at Calabozo, who was in vain attempting to extract mercury from this red sandstone. In the Mesa de Paja this rock contains strata of another quartzose sandstone, very fine-grained; more to the south it contains masses of brown iron, and fragments of petrified⁴⁹² trees of the monocotyledonous family, but we did not see in it any shells. The red sandstone, called by the Llaneros, the stone of the reefs (piedra de arrecifes), is everywhere covered with a stratum of clay. This clay, dried and hardened in the sun, splits into separate prismatic pieces with five or six sides. Does it belong to the trap-formation of Parapara? It becomes thicker, and mixed with sand, as we approach the Rio Apure; for near Calabozo it is one toise thick, near the mission of Guayaval five toises, which may lead to the belief that the strata of red sandstone dips towards the south. We gathered in the Mesa de Pavones little nodules of blue iron-ore disseminated in the clay.

[* At Malpaso and Piedras Azules.]

A dense⁴⁵⁴ whitish-gray limestone, with a smooth fracture, somewhat analogous to that of Caripe, and consequently to that of Jura, lies on the red sandstone between Tisnao and Calabozo.* In several other places, for instance in the Mesa de San Diego, and between Ortiz and the Mesa de Paja,* we find above the limestone lamellar gypsum alternating with strata of marl. Considerable quantities of this gypsum are sent to the city of Caracas,* which is situated amidst primitive mountains.

[* Does this formation of secondary limestone of the Llanos contain galena? It has been found in strata of black marl, at Barbacoa, between Truxillo and Barquesimeto, north-west of the Llanos.]

[* Also near Cachipe and San Joacquim, in the Llanos of Barcelona.]

[* This trade is carried on at Parapara. A load of eight arrobas sells at Caracas for twenty-four piastres.]

This gypsum generally forms only small beds, and is mixed with a great deal of fibrous gypsum. Is it of the same formation as that of Guire, on the coast of Paria, which contains sulphur? or do the masses of this latter substance, found in the valley of Buen Pastor²⁵¹ and on the banks of the Orinoco, belong, with the argillaceous gypsum of the Llanos, to a secondary formation much more recent.

These questions are very interesting in the study of the relative antiquity of rocks, which is the principal basis of geology. I know not of any salt-deposits in the Llanos. Horned cattle prosper³⁴¹ here without those famous bareros, or muriatiferous lands, which abound in the Pampas of Buenos Ayres.*

[* Known in North America under the name of salt-licks.]

After having wandered for a long time, and without any traces of a road, in the desert savannahs of the Mesa de Pavones, we were agreeably surprised when we came to a solitary farm, the Hato de Alta Gracia, surrounded with gardens and basins of limpid water. Hedges of bead-trees encircled groups of icacoes laden with fruit. Farther on we passed the night near the small village of San Geronymo del Guayaval, founded by Capuchin missionaries. It is situated near the banks of the Rio Guarico, which falls into the Apure. I visited the missionary, who had no other habitation than his church, not having yet built a house. He was a young man, and he received us in the most obliging manner, giving us all the information we desired. His village, or to use the word established among the monks, his Mission, was not easy to govern. The founder⁴⁹³, who had not hesitated to establish for his own profit a pulperia, in other words, to sell bananas and guarapo in the church itself, had shown himself to be not very nice in the choice of the new colonists. Many marauders of the Llanos had settled at Guayaval, because the inhabitants of a Mission are exempt⁴⁹⁴ from the authority of secular law. Here, as in Australia, it cannot be expected that good colonists will be formed before the second or third generation.

We passed the Guarico, and encamped in the savannahs south of Guayaval. Enormous bats, no doubt of the tribe of Phyllostomas, hovered⁴⁹⁵ as usual over our hammocks during a great part of the night. Every moment they seemed to be about to fasten on our faces. Early in the morning we pursued our way over low grounds, often inundated. In the season of rains, a boat may be navigated⁴⁹⁶, as on a lake, between the Guarico and the Apure. We arrived on the 27th of March at the Villa de San Fernando, the capital of the Mission of the Capuchins in the province of Varinas. This was the termination of our journey over the Llanos; for we passed the three months of April, May, and June on the rivers.

1 villa   

n.别墅，城郊小屋

参考例句：

• We rented a villa in France for the summer holidays.我们在法国租了一幢别墅消夏。
• We are quartered in a beautiful villa.我们住在一栋漂亮的别墅里。

2 descend   

vt./vi.传下来，下来，下降

参考例句：

• I hope the grace of God would descend on me.我期望上帝的恩惠。
• We're not going to descend to such methods.我们不会沦落到使用这种手段。

3 embellished   

v.美化( embellish的过去式和过去分词 )；装饰；修饰；润色

参考例句：

• The door of the old church was embellished with decorations. 老教堂的门是用雕饰美化的。 来自《简明英汉词典》
• The stern was embellished with carvings in red and blue. 船尾饰有红色和蓝色的雕刻图案。 来自辞典例句

4 cultivation   

n.耕作，培养，栽培（法），养成

参考例句：

• The cultivation in good taste is our main objective.培养高雅情趣是我们的主要目标。
• The land is not fertile enough to repay cultivation.这块土地不够肥沃，不值得耕种。

5 plunge   

v.跳入，(使)投入，(使)陷入；猛冲

参考例句：

• Test pool's water temperature before you plunge in.在你跳入之前你应该测试水温。
• That would plunge them in the broil of the two countries.那将会使他们陷入这两国的争斗之中。

6 solitude   

n. 孤独; 独居,荒僻之地,幽静的地方

参考例句：

• People need a chance to reflect on spiritual matters in solitude. 人们需要独处的机会来反思精神上的事情。
• They searched for a place where they could live in solitude. 他们寻找一个可以过隐居生活的地方。

7 accustom   

vt.使适应，使习惯

参考例句：

• It took him a while to accustom himself to the idea.他过了一段时间才习惯这个想法。
• It'shouldn't take long to accustom your students to working in groups.你的学生应该很快就会习惯分组学习的。

8 beholds   

v.看，注视( behold的第三人称单数 )；瞧；看呀；（叙述中用于引出某人意外的出现）哎哟

参考例句：

• He who beholds the gods against their will, shall atone for it by a heavy penalty. 谁违背神的意志看见了神，就要受到重罚以赎罪。 来自辞典例句
• All mankind has gazed on it; Man beholds it from afar. 25?所行的，万人都看见；世人都从远处观看。 来自互联网

9 astonishment   

n.惊奇，惊异

参考例句：

• They heard him give a loud shout of astonishment.他们听见他惊奇地大叫一声。
• I was filled with astonishment at her strange action.我对她的奇怪举动不胜惊异。

10 ascend   

vi.渐渐上升，升高；vt.攀登，登上

参考例句：

• We watched the airplane ascend higher and higher.我们看着飞机逐渐升高。
• We ascend in the order of time and of development.我们按时间和发展顺序向上溯。

11 fore   

adv.在前面；adj.先前的；在前部的；n.前部

参考例句：

• Your seat is in the fore part of the aircraft.你的座位在飞机的前部。
• I have the gift of fore knowledge.我能够未卜先知。

12 briefly   

adv.简单地，简短地

参考例句：

• I want to touch briefly on another aspect of the problem.我想简单地谈一下这个问题的另一方面。
• He was kidnapped and briefly detained by a terrorist group.他被一个恐怖组织绑架并短暂拘禁。

13 monk   

n.和尚，僧侣，修道士

参考例句：

• The man was a monk from Emei Mountain.那人是峨眉山下来的和尚。
• Buddhist monk sat with folded palms.和尚合掌打坐。

14 callous   

adj.无情的，冷淡的，硬结的，起老茧的

参考例句：

• He is callous about the safety of his workers.他对他工人的安全毫不关心。
• She was selfish,arrogant and often callous.她自私傲慢，而且往往冷酷无情。

15 prehensile   

adj.（足等）适于抓握的

参考例句：

• Poets are those strangely prehensile men.诗人是那些具有深刻洞察力的人们。
• A monkey has a prehensile tail.猴子有能盘卷住东西的尾巴。

16 superfluous   

adj.过多的，过剩的，多余的

参考例句：

• She fined away superfluous matter in the design. 她删去了这图案中多余的东西。
• That request seemed superfluous when I wrote it.我这样写的时候觉得这个请求似乎是多此一举。

17 dubious   

adj.怀疑的，无把握的；有问题的，靠不住的

参考例句：

• What he said yesterday was dubious.他昨天说的话很含糊。
• He uses some dubious shifts to get money.他用一些可疑的手段去赚钱。

18 con   

n.反对的观点，反对者，反对票，肺病；vt.精读，学习，默记；adv.反对地，从反面；adj.欺诈的

参考例句：

• We must be fair and consider the reason pro and con.我们必须公平考虑赞成和反对的理由。
• The motion is adopted non con.因无人投反对票，协议被通过。

19 marvels   

n.奇迹( marvel的名词复数 )；令人惊奇的事物（或事例）；不平凡的成果；成就v.惊奇，对…感到惊奇( marvel的第三人称单数 )

参考例句：

• The doctor's treatment has worked marvels : the patient has recovered completely. 该医生妙手回春，病人已完全康复。 来自辞典例句
• Nevertheless he revels in a catalogue of marvels. 可他还是兴致勃勃地罗列了一堆怪诞不经的事物。 来自辞典例句

20 savage   

adj.野蛮的；凶恶的，残暴的；n.未开化的人

参考例句：

• The poor man received a savage beating from the thugs.那可怜的人遭到暴徒的痛打。
• He has a savage temper.他脾气粗暴。

21 artifices   

n.灵巧( artifice的名词复数 )；诡计；巧妙办法；虚伪行为

参考例句：

• These pure verbal artifices do not change the essence of the matter. 这些纯粹是文词上的花样，并不能改变问题的实质。 来自互联网
• There are some tools which realise this kind of artifices. 一些工具实现了这些方法。 来自互联网

22 condor   

n.秃鹰；秃鹰金币

参考例句：

• The condor soars above the mountain heights.禿鹰翱翔于高山之上。
• A condor prepares to fly in Colombia.一只兀鹰在哥伦比亚准备振翅高飞。

23 engraving   

n.版画；雕刻（作品）；雕刻艺术；镌版术v.在（硬物）上雕刻（字，画等）( engrave的现在分词 )；将某事物深深印在（记忆或头脑中）

参考例句：

• He collected an old engraving of London Bridge. 他收藏了一张古老的伦敦桥版画。 来自辞典例句
• Some writing has the precision of a steel engraving. 有的字体严谨如同钢刻。 来自辞典例句

24 feat   

n.功绩；武艺，技艺；adj.灵巧的，漂亮的，合适的

参考例句：

• Man's first landing on the moon was a feat of great daring.人类首次登月是一个勇敢的壮举。
• He received a medal for his heroic feat.他因其英雄业绩而获得一枚勋章。

25 lighter   

n.打火机，点火器；驳船；v.用驳船运送；light的比较级

参考例句：

• The portrait was touched up so as to make it lighter.这张画经过润色，色调明朗了一些。
• The lighter works off the car battery.引燃器利用汽车蓄电池打火。

26 mere   

adj.纯粹的；仅仅，只不过

参考例句：

• That is a mere repetition of what you said before.那不过是重复了你以前讲的话。
• It's a mere waste of time waiting any longer.再等下去纯粹是浪费时间。

27 predilection   

n.偏好

参考例句：

• He has a predilection for rich food.他偏好油腻的食物。
• Charles has always had a predilection for red-haired women.查尔斯对红头发女人一直有偏爱。

28 detested   

v.憎恶，嫌恶，痛恨( detest的过去式和过去分词 )

参考例句：

• They detested each other on sight. 他们互相看着就不顺眼。
• The freethinker hated the formalist; the lover of liberty detested the disciplinarian. 自由思想者总是不喜欢拘泥形式者，爱好自由者总是憎恶清规戒律者。 来自辞典例句

29 distinguished   

adj.卓越的，杰出的，著名的

参考例句：

• Elephants are distinguished from other animals by their long noses.大象以其长长的鼻子显示出与其他动物的不同。
• A banquet was given in honor of the distinguished guests.宴会是为了向贵宾们致敬而举行的。

30 solitary   

adj.孤独的，独立的，荒凉的；n.隐士

参考例句：

• I am rather fond of a solitary stroll in the country.我颇喜欢在乡间独自徜徉。
• The castle rises in solitary splendour on the fringe of the desert.这座城堡巍然耸立在沙漠的边际，显得十分壮美。

31 interval   

n.间隔，间距；幕间休息，中场休息

参考例句：

• The interval between the two trees measures 40 feet.这两棵树的间隔是40英尺。
• There was a long interval before he anwsered the telephone.隔了好久他才回了电话。

32 missionaries   

n.传教士( missionary的名词复数 )

参考例句：

• Some missionaries came from England in the Qing Dynasty. 清朝时，从英国来了一些传教士。 来自《简明英汉词典》
• The missionaries rebuked the natives for worshipping images. 传教士指责当地人崇拜偶像。 来自《现代汉英综合大词典》

33 forth   

adv.向前；向外，往外

参考例句：

• The wind moved the trees gently back and forth.风吹得树轻轻地来回摇晃。
• He gave forth a series of works in rapid succession.他很快连续发表了一系列的作品。

34 choir   

n.唱诗班，唱诗班的席位，合唱团，舞蹈团；v.合唱

参考例句：

• The choir sang the words out with great vigor.合唱团以极大的热情唱出了歌词。
• The church choir is singing tonight.今晚教堂歌唱队要唱诗。

35 entirely   

ad.全部地，完整地；完全地，彻底地

参考例句：

• The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
• His life was entirely given up to the educational work. 他的一生统统献给了教育工作。

36 fixed   

adj.固定的，不变的，准备好的；(计算机)固定的

参考例句：

• Have you two fixed on a date for the wedding yet?你们俩选定婚期了吗？
• Once the aim is fixed,we should not change it arbitrarily.目标一旦确定，我们就不应该随意改变。

37 gravel   

n.砂跞；砂砾层；结石

参考例句：

• We bought six bags of gravel for the garden path.我们购买了六袋碎石用来铺花园的小路。
• More gravel is needed to fill the hollow in the drive.需要更多的砾石来填平车道上的坑洼。

38 asthma   

n.气喘病，哮喘病

参考例句：

• I think he's having an asthma attack.我想他现在是哮喘病发作了。
• Its presence in allergic asthma is well known.它在过敏性气喘中的存在是大家很熟悉的。

39 virtue   

n.德行，美德；贞操；优点；功效，效力

参考例句：

• He was considered to be a paragon of virtue.他被认为是品德尽善尽美的典范。
• You need to decorate your mind with virtue.你应该用德行美化心灵。

40 latitude   

n.纬度，行动或言论的自由(范围)，(pl.)地区

参考例句：

• The latitude of the island is 20 degrees south.该岛的纬度是南纬20度。
• The two cities are at approximately the same latitude.这两个城市差不多位于同一纬度上。

41 lodged   

v.存放( lodge的过去式和过去分词 )；暂住；埋入；（权利、权威等）归属

参考例句：

• The certificate will have to be lodged at the registry. 证书必须存放在登记处。 来自《简明英汉词典》
• Our neighbours lodged a complaint against us with the police. 我们的邻居向警方控告我们。 来自《简明英汉词典》

42 sergeant   

n.警官，中士

参考例句：

• His elder brother is a sergeant.他哥哥是个警官。
• How many stripes are there on the sleeve of a sergeant?陆军中士的袖子上有多少条纹？

43 severely   

adv.严格地；严厉地；非常恶劣地

参考例句：

• He was severely criticized and removed from his post.他受到了严厉的批评并且被撤了职。
• He is severely put down for his careless work.他因工作上的粗心大意而受到了严厉的批评。

44 elevation   

n.高度；海拔；高地；上升；提高

参考例句：

• The house is at an elevation of 2,000 metres.那幢房子位于海拔两千米的高处。
• His elevation to the position of General Manager was announced yesterday.昨天宣布他晋升总经理职位。

45 strata   

n.地层（复数）；社会阶层

参考例句：

• The older strata gradually disintegrate.较老的岩层渐渐风化。
• They represent all social strata.他们代表各个社会阶层。

46 veins   

n.纹理；矿脉( vein的名词复数 )；静脉；叶脉；纹理

参考例句：

• The blood flows from the capillaries back into the veins. 血从毛细血管流回静脉。 来自《简明英汉词典》
• I felt a pleasant glow in all my veins from the wine. 喝过酒后我浑身的血都热烘烘的，感到很舒服。 来自《简明英汉词典》

47 quartz   

n.石英

参考例句：

• There is a great deal quartz in those mountains.那些山里蕴藏着大量石英。
• The quartz watch keeps good time.石英表走时准。

48 copper   

n.铜；铜币；铜器；adj.铜(制)的；(紫)铜色的

参考例句：

• The students are asked to prove the purity of copper.要求学生们检验铜的纯度。
• Copper is a good medium for the conduction of heat and electricity.铜是热和电的良导体。

49 wrought   

v.引起；以…原料制作；运转；adj.制造的

参考例句：

• Events in Paris wrought a change in British opinion towards France and Germany.巴黎发生的事件改变了英国对法国和德国的看法。
• It's a walking stick with a gold head wrought in the form of a flower.那是一个金质花形包头的拐杖。

50 altercation   

n.争吵，争论

参考例句：

• Throughout the entire altercation,not one sensible word was uttered.争了半天，没有一句话是切合实际的。
• The boys had an altercation over the umpire's decision.男孩子们对裁判的判决颇有争议。

51 colonist   

n.殖民者，移民

参考例句：

• The indians often attacked the settlements of the colonist.印地安人经常袭击殖民者的定居点。
• In the seventeenth century, the colonist here thatched their roofs with reeds and straw,just as they did in england.在17世纪，殖民者在这里用茅草盖屋，就像他们在英国做的一样。

52 colonists   

n.殖民地开拓者，移民，殖民地居民( colonist的名词复数 )

参考例句：

• Colonists from Europe populated many parts of the Americas. 欧洲的殖民者移居到了美洲的许多地方。 来自《简明英汉词典》
• Some of the early colonists were cruel to the native population. 有些早期移居殖民地的人对当地居民很残忍。 来自《简明英汉词典》

53 barometric   

大气压力

参考例句：

• Electricity compensates for barometric pressure as well as system pressure variations. 用电补偿大气压和系统压力的变化。
• A barometric altimeter indicates height above sea level or some other selected elevation. 气压高度表用以指示海平面或另外某个被选定高度以上的高度。

54 barometrical   

气压计的

参考例句：

• There are no indications of any great change in the barometrical situation. 从气压看来还没有天气巨大变化的迹象。

55 destitute   

adj.缺乏的；穷困的

参考例句：

• They were destitute of necessaries of life.他们缺少生活必需品。
• They are destitute of common sense.他们缺乏常识。

56 primitive   

adj.原始的；简单的；n.原(始)人，原始事物

参考例句：

• It is a primitive instinct to flee a place of danger.逃离危险的地方是一种原始本能。
• His book describes the march of the civilization of a primitive society.他的著作描述了一个原始社会的开化过程。

57 crevices   

n.（尤指岩石的）裂缝，缺口( crevice的名词复数 )

参考例句：

• It has bedded into the deepest crevices of the store. 它已钻进了店里最隐避的隙缝。 来自辞典例句
• The wind whistled through the crevices in the rock. 风呼啸着吹过岩石的缝隙。 来自辞典例句

58 resentment   

n.怨愤，忿恨

参考例句：

• All her feelings of resentment just came pouring out.她一股脑儿倾吐出所有的怨恨。
• She cherished a deep resentment under the rose towards her employer.她暗中对她的雇主怀恨在心。

59 languished   

长期受苦( languish的过去式和过去分词 )； 受折磨； 变得（越来越）衰弱； 因渴望而变得憔悴或闷闷不乐

参考例句：

• Our project languished during the holidays. 我们的计划在假期间推动得松懈了。
• He languished after his dog died. 他狗死之后，人憔悴了。

60 anguish   

n.(尤指心灵上的)极度痛苦，烦恼

参考例句：

• She cried out for anguish at parting.分手时，她由于痛苦而失声大哭。
• The unspeakable anguish wrung his heart.难言的痛苦折磨着他的心。

61 dungeon   

n.地牢，土牢

参考例句：

• They were driven into a dark dungeon.他们被人驱赶进入一个黑暗的地牢。
• He was just set free from a dungeon a few days ago.几天前，他刚从土牢里被放出来。

62 imprisoned   

下狱，监禁( imprison的过去式和过去分词 )

参考例句：

• He was imprisoned for two concurrent terms of 30 months and 18 months. 他被判处30个月和18个月的监禁，合并执行。
• They were imprisoned for possession of drugs. 他们因拥有毒品而被监禁。

63 fortress   

n.堡垒，防御工事

参考例句：

• They made an attempt on a fortress.他们试图夺取这一要塞。
• The soldier scaled the wall of the fortress by turret.士兵通过塔车攀登上了要塞的城墙。

64 entrusted   

v.委托，托付( entrust的过去式和过去分词 )

参考例句：

• He entrusted the task to his nephew. 他把这任务托付给了他的侄儿。
• She was entrusted with the direction of the project. 她受委托负责这项计划。 来自《简明英汉词典》

65 savings   

n.存款，储蓄

参考例句：

• I can't afford the vacation,for it would eat up my savings.我度不起假，那样会把我的积蓄用光的。
• By this time he had used up all his savings.到这时，他的存款已全部用完。

66 delicacy   

n.精致，细微，微妙，精良；美味，佳肴

参考例句：

• We admired the delicacy of the craftsmanship.我们佩服工艺师精巧的手艺。
• He sensed the delicacy of the situation.他感觉到了形势的微妙。

67 apothecary   

n.药剂师

参考例句：

• I am an apothecary of that hospital.我是那家医院的一名药剂师。
• He was the usual cut and dry apothecary,of no particular age and color.他是那种再普通不过的行医者，说不出多大年纪，相貌也没什么值得一提的。

68 propensity   

n.倾向；习性

参考例句：

• He has a propensity for drinking too much alcohol.他有酗酒的倾向。
• She hasn't reckoned on his propensity for violence.她不曾料到他有暴力倾向。

69 declivity   

n.下坡，倾斜面

参考例句：

• I looked frontage straightly,going declivity one by one.我两眼直视前方，一路下坡又下坡。
• He had rolled down a declivity of twelve or fifteen feet.他是从十二尺或十五尺高的地方滚下来的。

70 remarkable   

adj.显著的，异常的，非凡的，值得注意的

参考例句：

• She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
• These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。

71 thermal   

adj.热的，由热造成的；保暖的

参考例句：

• They will build another thermal power station.他们要另外建一座热能发电站。
• Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。

72 perpendicular   

adj.垂直的，直立的；n.垂直线，垂直的位置

参考例句：

• The two lines of bones are set perpendicular to one another.这两排骨头相互垂直。
• The wall is out of the perpendicular.这墙有些倾斜。

73 glide   

n./v.溜，滑行；(时间)消逝

参考例句：

• We stood in silence watching the snake glide effortlessly.我们噤若寒蝉地站着，眼看那条蛇逍遥自在地游来游去。
• So graceful was the ballerina that she just seemed to glide.那芭蕾舞女演员翩跹起舞，宛如滑翔。

74 limestone   

n.石灰石

参考例句：

• Limestone is often used in building construction.石灰岩常用于建筑。
• Cement is made from limestone.水泥是由石灰石制成的。

75 lagoon   

n.泻湖，咸水湖

参考例句：

• The lagoon was pullulated with tropical fish.那个咸水湖聚满了热带鱼。
• This area isolates a restricted lagoon environment.将这一地区隔离起来使形成一个封闭的泻湖环境。

76 celebrated   

adj.有名的，声誉卓著的

参考例句：

• He was soon one of the most celebrated young painters in England.不久他就成了英格兰最负盛名的年轻画家之一。
• The celebrated violinist was mobbed by the audience.观众团团围住了这位著名的小提琴演奏家。

77 virgin   

n.处女，未婚女子；adj.未经使用的；未经开发的

参考例句：

• Have you ever been to a virgin forest?你去过原始森林吗？
• There are vast expanses of virgin land in the remote regions.在边远地区有大片大片未开垦的土地。

78 bishop   

n.主教，（国际象棋）象

参考例句：

• He was a bishop who was held in reverence by all.他是一位被大家都尊敬的主教。
• Two years after his death the bishop was canonised.主教逝世两年后被正式封为圣者。

79 limpid   

adj.清澈的，透明的

参考例句：

• He has a pair of limpid blue eyes.他有一双清澈的蓝眼睛。
• The sky was a limpid blue,as if swept clean of everything.碧空如洗。

80 infested   

adj.为患的，大批滋生的（常与with搭配）v.害虫、野兽大批出没于( infest的过去式和过去分词 )；遍布于

参考例句：

• The kitchen was infested with ants. 厨房里到处是蚂蚁。
• The apartments were infested with rats and roaches. 公寓里面到处都是老鼠和蟑螂。

81 caravan   

n.大蓬车；活动房屋

参考例句：

• The community adviser gave us a caravan to live in.社区顾问给了我们一间活动住房栖身。
• Geoff connected the caravan to the car.杰弗把旅行用的住屋拖车挂在汽车上。

82 slate   

n.板岩，石板，石片，石板色，候选人名单；adj.暗蓝灰色的，含板岩的；vt.用石板覆盖，痛打，提名，预订

参考例句：

• The nominating committee laid its slate before the board.提名委员会把候选人名单提交全体委员会讨论。
• What kind of job uses stained wood and slate? 什么工作会接触木头污浊和石板呢？

83 slates   

（旧时学生用以写字的）石板( slate的名词复数 )； 板岩； 石板瓦； 石板色

参考例句：

• The contract specifies red tiles, not slates, for the roof. 合同规定屋顶用红瓦，并非石板瓦。
• They roofed the house with slates. 他们用石板瓦做屋顶。

84 geologist   

n.地质学家

参考例句：

• The geologist found many uncovered fossils in the valley.在那山谷里，地质学家发现了许多裸露的化石。
• He was a geologist,rated by his cronies as the best in the business.他是一位地质学家，被他的老朋友们看做是这门行当中最好的一位。

85 fin   

n.鳍；(飞机的)安定翼

参考例句：

• They swim using a small fin on their back.它们用背上的小鳍游动。
• The aircraft has a long tail fin.那架飞机有一个长长的尾翼。

86 igneous   

adj.火的，火绒的

参考例句：

• Igneous rocks do not contain fossils.火成岩不含化石。
• The rocks here are igneous and do not fracture along predictable lines.这儿的石头都是火成岩，石头的裂缝极不规则。

87 phenomena   

n.现象

参考例句：

• Ade couldn't relate the phenomena with any theory he knew.艾德无法用他所知道的任何理论来解释这种现象。
• The object of these experiments was to find the connection,if any,between the two phenomena.这些实验的目的就是探索这两种现象之间的联系，如果存在着任何联系的话。

88 worthy   

adj.(of)值得的，配得上的；有价值的

参考例句：

• I did not esteem him to be worthy of trust.我认为他不值得信赖。
• There occurred nothing that was worthy to be mentioned.没有值得一提的事发生。

89 affinities   

n.密切关系( affinity的名词复数 )；亲近；（生性）喜爱；类同

参考例句：

• Cubism had affinities with the new European interest in Jazz. 主体派和欧洲新近的爵士音乐热有密切关系。 来自辞典例句
• The different isozymes bind calcium ions with different affinities. 不同的同功酶以不同的亲和力与钙离子相结合。 来自辞典例句

90 drawn   

v.拖，拉，拔出；adj.憔悴的，紧张的

参考例句：

• All the characters in the story are drawn from life.故事中的所有人物都取材于生活。
• Her gaze was drawn irresistibly to the scene outside.她的目光禁不住被外面的风景所吸引。

91 granite   

adj.花岗岩，花岗石

参考例句：

• They squared a block of granite.他们把一块花岗岩加工成四方形。
• The granite overlies the older rocks.花岗岩躺在磨损的岩石上面。

92 mica   

n.云母

参考例句：

• It could not pass through material impervious to water such as mica.它不能通过云母这样的不透水的物质。
• Because of its layered structure,mica is fissile.因为是层状结构，云母很容易分成片。

93 disseminated   

散布，传播( disseminate的过去式和过去分词 )

参考例句：

• Their findings have been widely disseminated . 他们的研究成果已经广为传播。
• Berkovitz had contracted polio after ingesting a vaccine disseminated under federal supervision. 伯考维茨在接种了在联邦监督下分发的牛痘疫苗后传染上脊髓灰质炎。

94 torrents   

n.倾注；奔流( torrent的名词复数 )；急流；爆发；连续不断

参考例句：

• The torrents scoured out a channel down the hill side. 急流沿着山腰冲刷出一条水沟。 来自《现代汉英综合大词典》
• Sudden rainstorms would bring the mountain torrents rushing down. 突然的暴雨会使山洪暴发。 来自《现代汉英综合大词典》

95 alluvial   

adj.冲积的；淤积的

参考例句：

• Alluvial soils usually grow the best crops.淤积土壤通常能长出最好的庄稼。
• A usually triangular alluvial deposit at the mouth of a river.三角洲河口常见的三角形沉淀淤积地带。

96 metallic   

adj.金属的；金属制的；含金属的；产金属的；像金属的

参考例句：

• A sharp metallic note coming from the outside frightened me.外面传来尖锐铿锵的声音吓了我一跳。
• He picked up a metallic ring last night.昨夜他捡了一个金属戒指。

97 justified   

a.正当的，有理的

参考例句：

• She felt fully justified in asking for her money back. 她认为有充分的理由要求退款。
• The prisoner has certainly justified his claims by his actions. 那个囚犯确实已用自己的行动表明他的要求是正当的。

98 favourable   

adj.赞成的，称赞的，有利的，良好的，顺利的

参考例句：

• The company will lend you money on very favourable terms.这家公司将以非常优惠的条件借钱给你。
• We found that most people are favourable to the idea.我们发现大多数人同意这个意见。

99 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。

100 stratum   

n.地层，社会阶层

参考例句：

• The coal is a coal resource that reserves in old stratum.石煤是贮藏在古老地层中的一种煤炭资源。
• How does Chinese society define the class and stratum?中国社会如何界定阶级与阶层？

101 cellular   

adj.移动的；细胞的，由细胞组成的

参考例句：

• She has a cellular telephone in her car.她的汽车里有一部无线通讯电话机。
• Many people use cellular materials as sensitive elements in hygrometers.很多人用蜂窝状的材料作为测量温度的传感元件。

102 tempted   

v.怂恿（某人）干不正当的事；冒…的险（tempt的过去分词）

参考例句：

• I was sorely tempted to complain, but I didn't. 我极想发牢骚，但还是没开口。
• I was tempted by the dessert menu. 甜食菜单馋得我垂涎欲滴。

103 specimens   

n.样品( specimen的名词复数 )；范例；（化验的）抽样；某种类型的人

参考例句：

• Astronauts have brought back specimens of rock from the moon. 宇航员从月球带回了岩石标本。
• The traveler brought back some specimens of the rocks from the mountains. 那位旅行者从山上带回了一些岩石标本。 来自《简明英汉词典》

104 mingled   

混合，混入( mingle的过去式和过去分词 )； 混进，与…交往[联系]

参考例句：

• The sounds of laughter and singing mingled in the evening air. 笑声和歌声交织在夜空中。
• The man and the woman mingled as everyone started to relax. 当大家开始放松的时候，这一男一女就开始交往了。

105 prudent   

adj.谨慎的，有远见的，精打细算的

参考例句：

• A prudent traveller never disparages his own country.聪明的旅行者从不贬低自己的国家。
• You must school yourself to be modest and prudent.你要学会谦虚谨慎。

106 abound   

vi.大量存在；(in，with)充满，富于

参考例句：

• Oranges abound here all the year round.这里一年到头都有很多橙子。
• But problems abound in the management of State-owned companies.但是在国有企业的管理中仍然存在不少问题。

107 systematically   

adv.有系统地

参考例句：

• This government has systematically run down public services since it took office.这一屆政府自上台以来系统地削减了公共服务。
• The rainforest is being systematically destroyed.雨林正被系统地毀灭。

108 peculiar   

adj.古怪的，异常的；特殊的，特有的

参考例句：

• He walks in a peculiar fashion.他走路的样子很奇特。
• He looked at me with a very peculiar expression.他用一种很奇怪的表情看着我。

109 geologists   

地质学家，地质学者( geologist的名词复数 )

参考例句：

• Geologists uncovered the hidden riches. 地质学家发现了地下的宝藏。
• Geologists study the structure of the rocks. 地质学家研究岩石结构。

110 tract   

n.传单，小册子，大片(土地或森林)

参考例句：

• He owns a large tract of forest.他拥有一大片森林。
• He wrote a tract on this subject.他曾对此写了一篇短文。

111 circumscribed   

adj.[医]局限的：受限制或限于有限空间的v.在…周围划线( circumscribe的过去式和过去分词 )；划定…范围；限制；限定

参考例句：

• The power of the monarchy was circumscribed by the new law. 君主统治的权力受到了新法律的制约。
• His activities have been severely circumscribed since his illness. 自生病以来他的行动一直受到严格的限制。 来自《简明英汉词典》

112 applied   

adj.应用的；v.应用，适用

参考例句：

• She plans to take a course in applied linguistics.她打算学习应用语言学课程。
• This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。

113 serpentine   

adj.蜿蜒的，弯曲的

参考例句：

• One part of the Serpentine is kept for swimmers.蜿蜒河的一段划为游泳区。
• Tremolite laths and serpentine minerals are present in places.有的地方出现透闪石板条及蛇纹石。

114 isolated   

adj.与世隔绝的

参考例句：

• His bad behaviour was just an isolated incident. 他的不良行为只是个别事件。
• Patients with the disease should be isolated. 这种病的患者应予以隔离。

115 concealed   

a.隐藏的，隐蔽的

参考例句：

• The paintings were concealed beneath a thick layer of plaster. 那些画被隐藏在厚厚的灰泥层下面。
• I think he had a gun concealed about his person. 我认为他当时身上藏有一支枪。

116 conceal   

v.隐藏，隐瞒，隐蔽

参考例句：

• He had to conceal his identity to escape the police.为了躲避警方，他只好隐瞒身份。
• He could hardly conceal his joy at his departure.他几乎掩饰不住临行时的喜悦。

117 gush   

v.喷，涌；滔滔不绝(说话)；n.喷，涌流；迸发

参考例句：

• There was a gush of blood from the wound.血从伤口流出。
• There was a gush of blood as the arrow was pulled out from the arm.当从手臂上拔出箭来时，一股鲜血涌了出来。

118 hue   

n.色度；色调；样子

参考例句：

• The diamond shone with every hue under the sun.金刚石在阳光下放出五颜六色的光芒。
• The same hue will look different in different light.同一颜色在不同的光线下看起来会有所不同。

119 shafts   

n.轴( shaft的名词复数 )；（箭、高尔夫球棒等的）杆；通风井；一阵（疼痛、害怕等）

参考例句：

• He deliberately jerked the shafts to rock him a bit. 他故意的上下颠动车把，摇这个老猴子几下。 来自汉英文学 - 骆驼祥子
• Shafts were sunk, with tunnels dug laterally. 竖井已经打下，并且挖有横向矿道。 来自辞典例句

120 regularity   

n.规律性，规则性；匀称，整齐

参考例句：

• The idea is to maintain the regularity of the heartbeat.问题就是要维持心跳的规律性。
• He exercised with a regularity that amazed us.他锻炼的规律程度令我们非常惊讶。

121 perpendicularly   

adv. 垂直地, 笔直地, 纵向地

参考例句：

• Fray's forehead was wrinkled both perpendicularly and crosswise. 弗雷的前额上纹路纵横。
• Automatic resquaring feature insures nozzle is perpendicularly to the part being cut. 自动垂直功能，可以确保刀头回到与工件完全垂直的位置去切割。

122 texture   

n.(织物)质地；(材料)构造；结构；肌理

参考例句：

• We could feel the smooth texture of silk.我们能感觉出丝绸的光滑质地。
• Her skin has a fine texture.她的皮肤细腻。

123 scattered   

adj.分散的，稀疏的；散步的；疏疏落落的

参考例句：

• Gathering up his scattered papers,he pushed them into his case.他把散乱的文件收拾起来，塞进文件夹里。

124 vestige   

n.痕迹，遗迹，残余

参考例句：

• Some upright stones in wild places are the vestige of ancient religions.荒原上一些直立的石块是古老宗教的遗迹。
• Every vestige has been swept away.一切痕迹都被一扫而光。

125 streak   

n.条理，斑纹，倾向，少许，痕迹；v.加条纹，变成条纹，奔驰，快速移动

参考例句：

• The Indians used to streak their faces with paint.印第安人过去常用颜料在脸上涂条纹。
• Why did you streak the tree?你为什么在树上刻条纹？

126 decomposition   

n. 分解, 腐烂, 崩溃

参考例句：

• It is said that the magnetite was formed by a chemical process called thermal decomposition. 据说这枚陨星是在热分解的化学过程中形成的。
• The dehydration process leads to fairly extensive decomposition of the product. 脱水过程会导致产物相当程度的分解。

127 limestones   

n.石灰岩( limestone的名词复数 )

参考例句：

• The isotopic signatures of most ancient limestones indicated the same process. 大多数古代石灰岩的同位素特征说明了同样的过程。 来自辞典例句
• There are four principal types of limestones. 石灰岩有四种主要类型。 来自辞典例句

128 junction   

n.连接，接合；交叉点，接合处，枢纽站

参考例句：

• There's a bridge at the junction of the two rivers.两河的汇合处有座桥。
• You must give way when you come to this junction.你到了这个路口必须让路。

129 joint   

adj.联合的，共同的；n.关节，接合处；v.连接，贴合

参考例句：

• I had a bad fall,which put my shoulder out of joint.我重重地摔了一跤，肩膀脫臼了。
• We wrote a letter in joint names.我们联名写了封信。

130 descends   

v.下来( descend的第三人称单数 )；下去；下降；下斜

参考例句：

• This festival descends from a religious rite. 这个节日起源于宗教仪式。 来自《简明英汉词典》
• The path descends steeply to the village. 小路陡直而下直到村子。 来自《简明英汉词典》

131 affinity   

n.亲和力，密切关系

参考例句：

• I felt a great affinity with the people of the Highlands.我被苏格兰高地人民深深地吸引。
• It's important that you share an affinity with your husband.和丈夫有共同的爱好是十分重要的。

132 northward   

adv.向北；n.北方的地区

参考例句：

• He pointed his boat northward.他将船驶向北方。
• I would have a chance to head northward quickly.我就很快有机会去北方了。

133 cones   

n.（人眼）圆锥细胞；圆锥体( cone的名词复数 )；球果；圆锥形东西；（盛冰淇淋的）锥形蛋卷筒

参考例句：

• In the pines squirrels commonly chew off and drop entire cones. 松树上的松鼠通常咬掉和弄落整个球果。 来自辞典例句
• Many children would rather eat ice cream from cones than from dishes. 许多小孩喜欢吃蛋卷冰淇淋胜过盘装冰淇淋。 来自辞典例句

134 considerably   

adv.极大地；相当大地；在很大程度上

参考例句：

• The economic situation has changed considerably.经济形势已发生了相当大的变化。
• The gap has narrowed considerably.分歧大大缩小了。

135 sterility   

n.不生育，不结果，贫瘠，消毒，无菌

参考例句：

• A major barrier to interspecific hybridization is sterility in the F1 progeny.种间杂交的主要障碍是F1代的不育性。
• Sterility is some permanent factor preventing procreation.不育是阻碍生殖的一种永久性因素。

136 varied   

adj.多样的，多变化的

参考例句：

• The forms of art are many and varied.艺术的形式是多种多样的。
• The hotel has a varied programme of nightly entertainment.宾馆有各种晚间娱乐活动。

137 flattened   

[医]（水）平扁的，弄平的

参考例句：

• She flattened her nose and lips against the window. 她把鼻子和嘴唇紧贴着窗户。
• I flattened myself against the wall to let them pass. 我身体紧靠着墙让他们通过。

138 nucleus   

n.核，核心，原子核

参考例句：

• These young people formed the nucleus of the club.这些年轻人成了俱乐部的核心。
• These councils would form the nucleus of a future regime.这些委员会将成为一个未来政权的核心。

139 decomposed   

已分解的，已腐烂的

参考例句：

• A liquid is decomposed when an electric current passes through it. 当电流通过时，液体就分解。
• Water can be resolved [decomposed] into hydrogen and oxygen. 水可分解为氢和氧。

140 enveloped   

v.包围，笼罩，包住( envelop的过去式和过去分词 )

参考例句：

• She was enveloped in a huge white towel. 她裹在一条白色大毛巾里。
• Smoke from the burning house enveloped the whole street. 燃烧着的房子冒出的浓烟笼罩了整条街。 来自《简明英汉词典》

141 fissures   

n.狭长裂缝或裂隙( fissure的名词复数 )；裂伤；分歧；分裂v.裂开( fissure的第三人称单数 )

参考例句：

• Rising molten rock flows out on the ocean floor and caps the fissures, trapping the water. 上升熔岩流到海底并堵住了裂隙，结果把海水封在里面。 来自辞典例句
• The French have held two colloquia and an international symposium on rock fissures. 法国已经开了两次岩石裂缝方面的报告会和一个国际会议。 来自辞典例句

142 contraction   

n.缩略词，缩写式，害病

参考例句：

• The contraction of this muscle raises the lower arm.肌肉的收缩使前臂抬起。
• The forces of expansion are balanced by forces of contraction.扩张力和收缩力相互平衡。

143 grotesque   

adj.怪诞的，丑陋的；n.怪诞的图案，怪人（物）

参考例句：

• His face has a grotesque appearance.他的面部表情十分怪。
• Her account of the incident was a grotesque distortion of the truth.她对这件事的陈述是荒诞地歪曲了事实。

144 sonorous   

adj.响亮的，回响的；adv.圆润低沉地；感人地；n.感人，堂皇

参考例句：

• The sonorous voice of the speaker echoed round the room.那位演讲人洪亮的声音在室内回荡。
• He has a deep sonorous voice.他的声音深沉而洪亮。

145 serpentines   

n.像蛇般蜷曲的，蜿蜒的( serpentine的名词复数 )v.像蛇般蜷曲的，蜿蜒的( serpentine的第三人称单数 )

参考例句：

• These fearsome beasts have small cannons, comparable to serpentines, mounted on their backs. 这些恐怖巨兽背负著类似蛇炮的小型加农炮。 来自互联网
• The Serpentine: Serpentines make excellent exercises for suppling the sides on the horse. 蛇形型路线，是很好的练习，帮助马匹柔软。 来自互联网

146 analogous   

adj.相似的；类似的

参考例句：

• The two situations are roughly analogous.两种情況大致相似。
• The company is in a position closely analogous to that of its main rival.该公司与主要竞争对手的处境极为相似。

147 slaty   

石板一样的，石板色的

参考例句：

• A sudden gust of cool wind under the slaty sky, and rain drops will start patter-pattering. 在灰沉沉的天底下，忽而来一阵凉风，便息列索落地下起雨来了。 来自汉英文学 - 散文英译
• A metamorphic rock intermediate between shale and slate, that does not possess true slaty cleavage. 一种细颗粒的变质岩，由泥质岩受热形成。

148 pointed   

adj.尖的，直截了当的

参考例句：

• He gave me a very sharp pointed pencil.他给我一支削得非常尖的铅笔。
• She wished to show Mrs.John Dashwood by this pointed invitation to her brother.她想通过对达茨伍德夫人提出直截了当的邀请向她的哥哥表示出来。

149 dominion   

n.统治，管辖，支配权；领土，版图

参考例句：

• Alexander held dominion over a vast area.亚历山大曾统治过辽阔的地域。
• In the affluent society,the authorities are hardly forced to justify their dominion.在富裕社会里，当局几乎无需证明其统治之合理。

150 sufficiently   

adv.足够地，充分地

参考例句：

• It turned out he had not insured the house sufficiently.原来他没有给房屋投足保险。
• The new policy was sufficiently elastic to accommodate both views.新政策充分灵活地适用两种观点。

151 lava   

n.熔岩，火山岩

参考例句：

• The lava flowed down the sides of the volcano.熔岩沿火山坡面涌流而下。
• His anger spilled out like lava.他的愤怒像火山爆发似的迸发出来。

152 fissured   

adj.裂缝的v.裂开( fissure的过去式和过去分词 )

参考例句：

• South African vine having a massive rootstock covered with deeply fissured bark. 南非藤蔓植物，有很大的根状茎，皮上有很深的裂纹。 来自互联网
• The concentrated leakage passage in fissured rock is studied with dummy heat source method. 利用虚拟热源法研究坝基裂隙岩体中存在的集中渗漏通道。 来自互联网

153 volcanic   

adj.火山的；象火山的；由火山引起的

参考例句：

• There have been several volcanic eruptions this year.今年火山爆发了好几次。
• Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。

154 embedded   

a.扎牢的

参考例句：

• an operation to remove glass that was embedded in his leg 取出扎入他腿部玻璃的手术
• He has embedded his name in the minds of millions of people. 他的名字铭刻在数百万人民心中。

155 fusion   

n.溶化；熔解；熔化状态，熔和；熔接

参考例句：

• Brass is formed by the fusion of copper and zinc. 黄铜是通过铜和锌的熔合而成的。
• This alloy is formed by the fusion of two types of metal.这种合金是用两种金属熔合而成的。

156 lavas   

n.（火山喷发的）熔岩( lava的名词复数 )；（熔岩冷凝后的）火山岩

参考例句：

• The lake was ponded by lavas a long time ago. 这条湖是很久以前熔岩堵塞河道形成的。 来自辞典例句
• Such lavas also once came from the volcanoes in the Cascade Range in Washington. 在华盛顿州的喀斯喀特山脉的火山也喷出过这样的熔岩。 来自辞典例句

157 attentively   

adv.聚精会神地；周到地；谛；凝神

参考例句：

• She listened attentively while I poured out my problems. 我倾吐心中的烦恼时，她一直在注意听。 来自《简明英汉词典》
• She listened attentively and set down every word he said. 她专心听着，把他说的话一字不漏地记下来。 来自《简明英汉词典》

158 eruptions   

n.喷发，爆发( eruption的名词复数 )

参考例句：

• There have been several volcanic eruptions this year. 今年火山爆发了好几次。 来自《简明英汉词典》
• Over 200 people have been killed by volcanic eruptions. 火山喷发已导致200多人丧生。 来自辞典例句

159 descended   

a.为...后裔的，出身于...的

参考例句：

• A mood of melancholy descended on us. 一种悲伤的情绪袭上我们的心头。
• The path descended the hill in a series of zigzags. 小路呈连续的之字形顺着山坡蜿蜒而下。

160 perfectly   

adv.完美地，无可非议地，彻底地

参考例句：

• The witnesses were each perfectly certain of what they said.证人们个个对自己所说的话十分肯定。
• Everything that we're doing is all perfectly above board.我们做的每件事情都是光明正大的。

161 formerly   

adv.从前，以前

参考例句：

• We now enjoy these comforts of which formerly we had only heard.我们现在享受到了过去只是听说过的那些舒适条件。
• This boat was formerly used on the rivers of China.这船从前航行在中国内河里。

162 catastrophe   

n.大灾难，大祸

参考例句：

• I owe it to you that I survived the catastrophe.亏得你我才大难不死。
• This is a catastrophe beyond human control.这是一场人类无法控制的灾难。

163 dykes   

abbr.diagonal wire cutters 斜线切割机n.堤( dyke的名词复数 )；坝；堰；沟

参考例句：

• They built dykes and dam to hold back the rising flood waters. 他们修筑了堤坝来阻挡上涨的洪水。 来自《简明英汉词典》
• The dykes were built as a protection against the sea. 建筑堤坝是为了防止海水泛滥。 来自《简明英汉词典》

164 granitic   

花岗石的，由花岗岩形成的

参考例句：

• A batholith has been defined as a huge intrusive mass of granitic rock. 岩基的定义是巨大的花岗石侵入岩体。
• A granitic rock composed chiefly of quartz and mica. 一种由石英和云母构成的花岗石。

165 sterile   

adj.不毛的，不孕的，无菌的，枯燥的，贫瘠的

参考例句：

• This top fits over the bottle and keeps the teat sterile.这个盖子严实地盖在奶瓶上，保持奶嘴无菌。
• The farmers turned the sterile land into high fields.农民们把不毛之地变成了高产田。

166 mules   

骡( mule的名词复数 )； 拖鞋； 顽固的人； 越境运毒者

参考例句：

• The cart was pulled by two mules. 两匹骡子拉这辆大车。
• She wore tight trousers and high-heeled mules. 她穿紧身裤和拖鞋式高跟鞋。

167 incessantly   

ad.不停地

参考例句：

• The machines roar incessantly during the hours of daylight. 机器在白天隆隆地响个不停。
• It rained incessantly for the whole two weeks. 雨不间断地下了整整两个星期。

168 augment   

vt.(使)增大，增加，增长，扩张

参考例句：

• They hit upon another idea to augment their income.他们又想出一个增加收入的办法。
• The government's first concern was to augment the army and auxiliary forces.政府首先关心的是增强军队和辅助的力量。

169 suffocating   

a.使人窒息的

参考例句：

• After a few weeks with her parents, she felt she was suffocating.和父母呆了几个星期后，她感到自己毫无自由。
• That's better. I was suffocating in that cell of a room.这样好些了，我刚才在那个小房间里快闷死了。

170 diffused   

散布的，普及的，扩散的

参考例句：

• A drop of milk diffused in the water. 一滴牛奶在水中扩散开来。
• Gases and liquids diffused. 气体和液体慢慢混合了。

171 sinuous   

adj.蜿蜒的，迂回的

参考例句：

• The river wound its sinuous way across the plain.这条河蜿蜒曲折地流过平原。
• We moved along the sinuous gravel walks,with the great concourse of girls and boys.我们沿着曲折的石径,随着男孩女孩汇成的巨流一路走去。

172 foliage   

n.叶子，树叶，簇叶

参考例句：

• The path was completely covered by the dense foliage.小路被树叶厚厚地盖了一层。
• Dark foliage clothes the hills.浓密的树叶覆盖着群山。

173 verdant   

adj.翠绿的，青翠的，生疏的，不老练的

参考例句：

• Children are playing on the verdant lawn.孩子们在绿茵茵的草坪上嬉戏玩耍。
• The verdant mountain forest turns red gradually in the autumn wind.苍翠的山林在秋风中渐渐变红了。

174 descried   

adj.被注意到的，被发现的，被看到的

参考例句：

• He descried an island far away on the horizon. 他看到遥远的地平线上有个岛屿。 来自《简明英汉词典》
• At length we descried a light and a roof. 终于，我们远远看见了一点灯光，一所孤舍。 来自辞典例句

175 extremity   

n.末端，尽头；尽力；终极；极度

参考例句：

• I hope you will help them in their extremity.我希望你能帮助在穷途末路的他们。
• What shall we do in this extremity?在这种极其困难的情况下我们该怎么办呢？

176 abode   

n.住处，住所

参考例句：

• It was ten months before my father discovered his abode.父亲花了十个月的功夫，才好不容易打听到他的住处。
• Welcome to our humble abode!欢迎光临寒舍！

177 mirage   

n.海市蜃楼，幻景

参考例句：

• Perhaps we are all just chasing a mirage.也许我们都只是在追逐一个幻想。
• Western liberalism was always a mirage.西方自由主义永远是一座海市蜃楼。

178 outlets   

n.出口( outlet的名词复数 )；经销店；插座；廉价经销店

参考例句：

• The dumping of foreign cotton blocked outlets for locally grown cotton. 外国棉花的倾销阻滞了当地生产的棉花的销路。 来自《简明英汉词典》
• They must find outlets for their products. 他们必须为自己的产品寻找出路。 来自《现代汉英综合大词典》

179 abounding   

adj.丰富的，大量的v.大量存在，充满，富于( abound的现在分词 )

参考例句：

• Ahead lay the scalloped ocean and the abounding blessed isles. 再往前是水波荡漾的海洋和星罗棋布的宝岛。 来自英汉文学 - 盖茨比
• The metallic curve of his sheep-crook shone silver-bright in the same abounding rays. 他那弯柄牧羊杖上的金属曲线也在这一片炽盛的火光下闪着银亮的光。 来自辞典例句

180 soda   

n.苏打水；汽水

参考例句：

• She doesn't enjoy drinking chocolate soda.她不喜欢喝巧克力汽水。
• I will freshen your drink with more soda and ice cubes.我给你的饮料重加一些苏打水和冰块。

181 vaguely   

adv.含糊地，暖昧地

参考例句：

• He had talked vaguely of going to work abroad.他含糊其词地说了到国外工作的事。
• He looked vaguely before him with unseeing eyes.他迷迷糊糊的望着前面，对一切都视而不见。

182 situated   

adj.坐落在...的，处于某种境地的

参考例句：

• The village is situated at the margin of a forest.村子位于森林的边缘。
• She is awkwardly situated.她的处境困难。

183 tracts   

大片土地( tract的名词复数 )； 地带； （体内的）道； （尤指宣扬宗教、伦理或政治的）短文

参考例句：

• vast tracts of forest 大片大片的森林
• There are tracts of desert in Australia. 澳大利亚有大片沙漠。

184 flora   

n.(某一地区的)植物群

参考例句：

• The subtropical island has a remarkably rich native flora.这个亚热带岛屿有相当丰富的乡土植物种类。
• All flora need water and light.一切草木都需要水和阳光。

185 baron   

n.男爵；(商业界等)巨头，大王

参考例句：

• Henry Ford was an automobile baron.亨利·福特是一位汽车业巨头。
• The baron lived in a strong castle.男爵住在一座坚固的城堡中。

186 marsh   

n.沼泽，湿地

参考例句：

• There are a lot of frogs in the marsh.沼泽里有许多青蛙。
• I made my way slowly out of the marsh.我缓慢地走出这片沼泽地。

187 marshes   

n.沼泽，湿地( marsh的名词复数 )

参考例句：

• Cows were grazing on the marshes. 牛群在湿地上吃草。
• We had to cross the marshes. 我们不得不穿过那片沼泽地。 来自《简明英汉词典》

188 eel   

n.鳗鲡

参考例句：

• He used an eel spear to catch an eel.他用一只捕鳗叉捕鳗鱼。
• In Suzhou,there was a restaurant that specialized in eel noodles.苏州有一家饭馆，他们那里的招牌菜是鳗鱼面。

189 temperate   

adj.温和的，温带的，自我克制的，不过分的

参考例句：

• Asia extends across the frigid,temperate and tropical zones.亚洲地跨寒、温、热三带。
• Great Britain has a temperate climate.英国气候温和。

190 alligators   

n.短吻鳄( alligator的名词复数 )

参考例句：

• Two alligators rest their snouts on the water's surface. 两只鳄鱼的大嘴栖息在水面上。 来自辞典例句
• In the movement of logs by water the lumber industry was greatly helped by alligators. 木材工业过去在水上运输木料时所十分倚重的就是鳄鱼。 来自辞典例句

191 alligator   

n.短吻鳄(一种鳄鱼)

参考例句：

• She wandered off to play with her toy alligator.她开始玩鳄鱼玩具。
• Alligator skin is five times more costlier than leather.鳄鱼皮比通常的皮革要贵5倍。

192 awakened   

v.（使）醒( awaken的过去式和过去分词 )；（使）觉醒；弄醒；（使）意识到

参考例句：

• She awakened to the sound of birds singing. 她醒来听到鸟的叫声。
• The public has been awakened to the full horror of the situation. 公众完全意识到了这一状况的可怕程度。 来自《简明英汉词典》

193 rivulets   

n.小河，小溪( rivulet的名词复数 )

参考例句：

• Rivulets of water ran in through the leaks. 小股的水流通过漏洞流进来。 来自《简明英汉词典》
• Rivulets of sweat streamed down his cheeks. 津津汗水顺着他的两颊流下。 来自辞典例句

194 stagnant   

adj.不流动的，停滞的，不景气的

参考例句：

• Due to low investment,industrial output has remained stagnant.由于投资少，工业生产一直停滞不前。
• Their national economy is stagnant.他们的国家经济停滞不前。

195 thickets   

n.灌木丛( thicket的名词复数 )；丛状物

参考例句：

• Small trees became thinly scattered among less dense thickets. 小树稀稀朗朗地立在树林里。 来自辞典例句
• The entire surface is covered with dense thickets. 所有的地面盖满了密密层层的灌木丛。 来自辞典例句

196 subterranean   

adj.地下的，地表下的

参考例句：

• London has 9 miles of such subterranean passages.伦敦像这样的地下通道有9英里长。
• We wandered through subterranean passages.我们漫游地下通道。

197 barometer   

n.气压表，睛雨表，反应指标

参考例句：

• The barometer marked a continuing fall in atmospheric pressure.气压表表明气压在继续下降。
• The arrow on the barometer was pointing to"stormy".气压计上的箭头指向“有暴风雨”。

198 swelling   

n.肿胀

参考例句：

• Use ice to reduce the swelling. 用冰敷消肿。
• There is a marked swelling of the lymph nodes. 淋巴结处有明显的肿块。

199 descending   

n. 下行 adj. 下降的

参考例句：

• The results are expressed in descending numerical order . 结果按数字降序列出。
• The climbers stopped to orient themselves before descending the mountain. 登山者先停下来确定所在的位置，然后再下山。

200 navigating   

v.给（船舶、飞机等）引航，导航( navigate的现在分词 )；（从海上、空中等）横越；横渡；飞跃

参考例句：

• These can also be very useful when navigating time-based documents, such as video and audio. 它对于和时间有关的文档非常有用，比如视频和音频文档。 来自About Face 3交互设计精髓
• Vehicles slowed to a crawl on city roads, navigating slushy snow. 汽车在市区路上行驶缓慢，穿越泥泞的雪地。 来自互联网

201 equilibrium   

n.平衡，均衡，相称，均势，平静

参考例句：

• Change in the world around us disturbs our inner equilibrium.我们周围世界的变化扰乱了我们内心的平静。
• This is best expressed in the form of an equilibrium constant.这最好用平衡常数的形式来表示。

202 conquerors   

征服者，占领者( conqueror的名词复数 )

参考例句：

• The Danes had selfconfidence of conquerors, and their security precautions were casual. 这些丹麦人具有征服者的自信，而且他们的安全防卫也是漫不经心的。
• The conquerors believed in crushing the defeated people into submission, knowing that they could not win their loyalty by the victory. 征服者们知道他们的胜利并不能赢得失败者的忠心，于是就认为只有通过武力才能将他们压服。

203 penetrate   

v.透(渗)入；刺入，刺穿；洞察，了解

参考例句：

• Western ideas penetrate slowly through the East.西方观念逐渐传入东方。
• The sunshine could not penetrate where the trees were thickest.阳光不能透入树木最浓密的地方。

204 penetrated   

adj. 击穿的，鞭辟入里的 动词penetrate的过去式和过去分词形式

参考例句：

• The knife had penetrated his chest. 刀子刺入了他的胸膛。
• They penetrated into territory where no man had ever gone before. 他们已进入先前没人去过的地区。

205 eminence   

n.卓越，显赫；高地，高处；名家

参考例句：

• He is a statesman of great eminence.他是个声名显赫的政治家。
• Many of the pilots were to achieve eminence in the aeronautical world.这些飞行员中很多人将会在航空界声名显赫。

206 misty   

adj.雾蒙蒙的，有雾的

参考例句：

• He crossed over to the window to see if it was still misty.他走到窗户那儿，看看是不是还有雾霭。
• The misty scene had a dreamy quality about it.雾景给人以梦幻般的感觉。

207 meridian   

adj.子午线的；全盛期的

参考例句：

• All places on the same meridian have the same longitude.在同一子午线上的地方都有相同的经度。
• He is now at the meridian of his intellectual power.他现在正值智力全盛期。

208 standing   

n.持续，地位；adj.永久的，不动的，直立的，不流动的

参考例句：

• After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
• They're standing out against any change in the law.他们坚决反对对法律做任何修改。

209 cape   

n.海角，岬；披肩，短披风

参考例句：

• I long for a trip to the Cape of Good Hope.我渴望到好望角去旅行。
• She was wearing a cape over her dress.她在外套上披着一件披肩。

210 margins   

边( margin的名词复数 )； 利润； 页边空白； 差数

参考例句：

• They have always had to make do with relatively small profit margins. 他们不得不经常设法应付较少的利润额。
• To create more space between the navigation items, add left and right margins to the links. 在每个项目间留更多的空隙，加左或者右的margins来定义链接。

211 eminences   

卓越( eminence的名词复数 )； 著名； 高地； 山丘

参考例句：

• Both are truly grey eminences who have become accustomed to the exercise of influence. 两个人都是真正的幕后操纵者，他们已习惯于用其影响进行幕后操纵。

212 geographers   

地理学家( geographer的名词复数 )

参考例句：

• Geographers study the configuration of the mountains. 地理学家研究山脉的地形轮廓。
• Many geographers now call this landmass Eurasia. 许多地理学家现在把这块陆地叫作欧亚大陆。

213 superstitious   

adj.迷信的

参考例句：

• They aim to deliver the people who are in bondage to superstitious belief.他们的目的在于解脱那些受迷信束缚的人。
• These superstitious practices should be abolished as soon as possible.这些迷信做法应尽早取消。

214 erect   

n./v.树立，建立，使竖立；adj.直立的，垂直的

参考例句：

• She held her head erect and her back straight.她昂着头，把背挺得笔直。
• Soldiers are trained to stand erect.士兵们训练站得笔直。

215 mounds   

土堆，土丘( mound的名词复数 )； 一大堆

参考例句：

• We had mounds of tasteless rice. 我们有成堆成堆的淡而无味的米饭。
• Ah! and there's the cemetery' - cemetery, he must have meant. 'You see the mounds? 啊，这就是同墓，”——我想他要说的一定是公墓，“看到那些土墩了吗？

216 fatigue   

n.疲劳，劳累

参考例句：

• The old lady can't bear the fatigue of a long journey.这位老妇人不能忍受长途旅行的疲劳。
• I have got over my weakness and fatigue.我已从虚弱和疲劳中恢复过来了。

217 delta   

n.（流的）角洲

参考例句：

• He has been to the delta of the Nile.他曾去过尼罗河三角洲。
• The Nile divides at its mouth and forms a delta.尼罗河在河口分岔，形成了一个三角洲。

218 contiguity   

n.邻近，接壤

参考例句：

• The contiguity of the house and the garage was a convenience in bad weather.住宅和车库毗邻，这在天气不好的时候是很方便的。
• Scientists want to investigate the relation between xerophthalmia occurrence and smut contiguity.科学家们打算探讨干眼症与煤尘接触之间的关系。

219 extremities   

n.端点( extremity的名词复数 )；尽头；手和足；极窘迫的境地

参考例句：

• She was most noticeable, I thought, in respect of her extremities. 我觉得她那副穷极可怜的样子实在太惹人注目。 来自辞典例句
• Winters may be quite cool at the northwestern extremities. 西北边区的冬天也可能会相当凉。 来自辞典例句

220 configuration   

n.结构，布局，形态，(计算机)配置

参考例句：

• Geographers study the configuration of the mountains.地理学家研究山脉的地形轮廓。
• Prices range from $119 to $199,depending on the particular configuration.价格因具体配置而异，从119美元至199美元不等。

221 cataracts   

n.大瀑布( cataract的名词复数 )；白内障

参考例句：

• The rotor cataracts water over the top of the machines. 回转轮将水从机器顶上注入。 来自《现代英汉综合大词典》
• Cataracts of rain flooded the streets. 倾盆大雨弄得街道淹水。 来自辞典例句

222 geographical   

adj.地理的；地区(性)的

参考例句：

• The current survey will have a wider geographical spread.当前的调查将在更广泛的地域范围內进行。
• These birds have a wide geographical distribution.这些鸟的地理分布很广。

223 furrow   

n.沟；垄沟；轨迹；车辙；皱纹

参考例句：

• The tractor has make deep furrow in the loose sand.拖拉机在松软的沙土上留下了深深的车辙。
• Mei did not weep.She only bit her lips,and the furrow in her brow deepened.梅埋下头，她咬了咬嘴唇皮，额上的皱纹显得更深了。

224 conceals   

v.隐藏，隐瞒，遮住( conceal的第三人称单数 )

参考例句：

• He conceals his worries behind a mask of nonchalance. 他装作若无其事，借以掩饰内心的不安。 来自《简明英汉词典》
• Drunkenness reveals what soberness conceals. 酒醉吐真言。 来自《简明英汉词典》

225 attain   

vt.达到，获得，完成

参考例句：

• I used the scientific method to attain this end. 我用科学的方法来达到这一目的。
• His painstaking to attain his goal in life is praiseworthy. 他为实现人生目标所下的苦功是值得称赞的。

226 marshy   

adj.沼泽的

参考例句：

• In August 1935,we began our march across the marshy grassland. 1935年8月，我们开始过草地。
• The surrounding land is low and marshy. 周围的地低洼而多沼泽。

227 nomad   

n.游牧部落的人，流浪者，游牧民

参考例句：

• He was indeed a nomad of no nationality.他的确是个无国籍的游民。
• The nomad life is rough and hazardous.游牧生活艰苦又危险。

228 colossal   

adj.异常的，庞大的

参考例句：

• There has been a colossal waste of public money.一直存在巨大的公款浪费。
• Some of the tall buildings in that city are colossal.那座城市里的一些高层建筑很庞大。

229 promontory   

n.海角；岬

参考例句：

• Genius is a promontory jutting out of the infinite.天才是茫茫大地突出的岬角。
• On the map that promontory looks like a nose,naughtily turned up.从地图上面，那个海角就像一只调皮地翘起来的鼻子。

230 savannas   

n.（美国东南部的）无树平原( savanna的名词复数 )；（亚）热带的稀树大草原

参考例句：

• Therefore the jungles and the savannas know of no juvenile delinquency! 因此，丛林和荒原里没有“少年犯罪。” 来自辞典例句
• My soul flits away into the virgin forests and to the savannas. 我的灵魂飞向森林中的处女地和广漠的平原。 来自互联网

231 lateral   

adj.侧面的，旁边的

参考例句：

• An airfoil that controls lateral motion.能够控制横向飞行的机翼。
• Mr.Dawson walked into the court from a lateral door.道森先生从一个侧面的门走进法庭。

232 latitudes   

纬度

参考例句：

• Latitudes are the lines that go from east to west. 纬线是从东到西的线。
• It was the brief Indian Summer of the high latitudes. 这是高纬度地方的那种短暂的晚秋。

233 abruptly   

adv.突然地，出其不意地

参考例句：

• He gestured abruptly for Virginia to get in the car.他粗鲁地示意弗吉尼亚上车。
• I was abruptly notified that a half-hour speech was expected of me.我突然被通知要讲半个小时的话。

234 littoral   

adj.海岸的；湖岸的；n.沿（海）岸地区

参考例句：

• We should produce the littoral advantage well.我们应该把海滨的优势很好地发挥出来。
• The reservoir sandstone was believed to have been deposited in a littoral environment.储集层砂岩就被认为是近海环境的沉积。

235 gulf   

n.海湾；深渊，鸿沟；分歧，隔阂

参考例句：

• The gulf between the two leaders cannot be bridged.两位领导人之间的鸿沟难以跨越。
• There is a gulf between the two cities.这两座城市间有个海湾。

236 rotation   

n.旋转；循环，轮流

参考例句：

• Crop rotation helps prevent soil erosion.农作物轮作有助于防止水土流失。
• The workers in this workshop do day and night shifts in weekly rotation.这个车间的工人上白班和上夜班每周轮换一次。

237 authorized   

a.委任的，许可的

参考例句：

• An administrative order is valid if authorized by a statute.如果一个行政命令得到一个法规的认可那么这个命令就是有效的。

238 inclination   

n.倾斜；点头；弯腰；斜坡；倾度；倾向；爱好

参考例句：

• She greeted us with a slight inclination of the head.她微微点头向我们致意。
• I did not feel the slightest inclination to hurry.我没有丝毫着急的意思。

239 eastward   

adv.向东；adj.向东的；n.东方，东部

参考例句：

• The river here tends eastward.这条河从这里向东流。
• The crowd is heading eastward,believing that they can find gold there.人群正在向东移去，他们认为在那里可以找到黄金。

240 meridians   

n.子午圈( meridian的名词复数 )；子午线；顶点；（权力，成就等的）全盛时期

参考例句：

• Meridians are great circles passing through both poles. 经线均为通过两极。 来自辞典例句
• The Cutaneous Regions are within the domains of the Twelve Regular Meridians. 十二皮部是十二经脉功能活动反映于体表的部位，也是络脉之气散布之所在。 来自互联网

241 overflowed   

溢出的

参考例句：

• Plates overflowed with party food. 聚会上的食物碟满盘盈。
• A great throng packed out the theater and overflowed into the corridors. 一大群人坐满剧院并且还有人涌到了走廊上。 来自《简明英汉词典》

242 ardent   

adj.热情的，热烈的，强烈的，烈性的

参考例句：

• He's an ardent supporter of the local football team.他是本地足球队的热情支持者。
• Ardent expectations were held by his parents for his college career.他父母对他的大学学习抱着殷切的期望。

243 corrupted   

（使）败坏( corrupt的过去式和过去分词 )； （使）腐化； 引起（计算机文件等的）错误； 破坏

参考例句：

• The body corrupted quite quickly. 尸体很快腐烂了。
• The text was corrupted by careless copyists. 原文因抄写员粗心而有讹误。

244 caravans   

（可供居住的）拖车（通常由机动车拖行）( caravan的名词复数 )； 篷车； （穿过沙漠地带的）旅行队（如商队）

参考例句：

• Old-fashioned gypsy caravans are painted wooden vehicles that are pulled by horses. 旧式的吉卜赛大篷车是由马拉的涂了颜色的木质车辆。
• Old-fashioned gypsy caravans are painted wooden vehicles. 旧时的吉普赛大篷车是涂了颜色的木质车辆。

245 moors   

v.停泊，系泊（船只）( moor的第三人称单数 )

参考例句：

• the North York moors 北约克郡的漠泽
• They're shooting grouse up on the moors. 他们在荒野射猎松鸡。 来自《简明英汉词典》

246 oases   

n.（沙漠中的）绿洲( oasis的名词复数 )；（困苦中）令人快慰的地方（或时刻）；乐土；乐事

参考例句：

• There was a hundred miles between the two oases. 这两片绿洲间有一百英里。 来自辞典例句
• Where underground water comes to the surface, there are oases. 地下水流到地表的地方，就成为了绿洲。 来自互联网

247 scorching   

adj. 灼热的

参考例句：

• a scorching, pitiless sun 灼热的骄阳
• a scorching critique of the government's economic policy 对政府经济政策的严厉批评

248 Fertilized   

v.施肥( fertilize的过去式和过去分词 )

参考例句：

• The study of psychology has recently been widely cross-fertilized by new discoveries in genetics. 心理学研究最近从遗传学的新发现中受益匪浅。
• Flowers are often fertilized by bees as they gather nectar. 花常在蜜蜂采蜜时受粉。

249 intercourse   

n.性交；交流，交往，交际

参考例句：

• The magazine becomes a cultural medium of intercourse between the two peoples.该杂志成为两民族间文化交流的媒介。
• There was close intercourse between them.他们过往很密。

250 hordes   

n.移动着的一大群( horde的名词复数 )；部落

参考例句：

• There are always hordes of tourists here in the summer. 夏天这里总有成群结队的游客。
• Hordes of journalists jostled for position outside the conference hall. 大群记者在会堂外争抢位置。 来自《简明英汉词典》

251 pastor   

n.牧师，牧人

参考例句：

• He was the son of a poor pastor.他是一个穷牧师的儿子。
• We have no pastor at present:the church is run by five deacons.我们目前没有牧师：教会的事是由五位执事管理的。

252 herd   

n.兽群，牧群；vt.使集中，把…赶在一起

参考例句：

• She drove the herd of cattle through the wilderness.她赶着牛群穿过荒野。
• He had no opinions of his own but simply follow the herd.他从无主见，只是人云亦云。

253 herds   

兽群( herd的名词复数 )； 牧群； 人群； 群众

参考例句：

• Regularly at daybreak they drive their herds to the pasture. 每天天一亮他们就把牲畜赶到草场上去。
• There we saw herds of cows grazing on the pasture. 我们在那里看到一群群的牛在草地上吃草。

254 inundation   

n.the act or fact of overflowing

参考例句：

• Otherwise, inundation would ensue to our dismay. 若不疏导，只能眼巴巴看着它泛滥。
• Therefore this psychology preceded the inundation of Caudillo politics after independence. 在独立后，这一心态助长了考迪罗主义的泛滥。

255 subjugating   

v.征服，降伏( subjugate的现在分词 )

参考例句：

256 ascending   

adj.上升的，向上的

参考例句：

• Now draw or trace ten dinosaurs in ascending order of size.现在按照体型由小到大的顺序画出或是临摹出10只恐龙。

257 subdued   

adj. 屈服的，柔和的，减弱的 动词subdue的过去式和过去分词

参考例句：

• He seemed a bit subdued to me. 我觉得他当时有点闷闷不乐。
• I felt strangely subdued when it was all over. 一切都结束的时候，我却有一种奇怪的压抑感。

258 civilized   

a.有教养的，文雅的

参考例句：

• Racism is abhorrent to a civilized society. 文明社会憎恶种族主义。
• rising crime in our so-called civilized societies 在我们所谓文明社会中日益增多的犯罪行为

259 theocracy   

n.神权政治；僧侣政治

参考例句：

• Shangzhou was an important period for the formation and development of theocracy.商周时期是神权政治形成与发展的重要阶段。
• The Muslim brothers look as if they will opt for civil society rather than theocracy.穆斯林兄弟看起来好像更适合文明的社会，而非神权统治。

260 secular   

n.牧师，凡人；adj.世俗的，现世的，不朽的

参考例句：

• We live in an increasingly secular society.我们生活在一个日益非宗教的社会。
• Britain is a plural society in which the secular predominates.英国是个世俗主导的多元社会。

261 narrative   

n.叙述，故事；adj.叙事的，故事体的

参考例句：

• He was a writer of great narrative power.他是一位颇有记述能力的作家。
• Neither author was very strong on narrative.两个作者都不是很善于讲故事。

262 monotonous   

adj.单调的，一成不变的，使人厌倦的

参考例句：

• She thought life in the small town was monotonous.她觉得小镇上的生活单调而乏味。
• His articles are fixed in form and monotonous in content.他的文章千篇一律，一个调调儿。

263 accomplished   

adj.有才艺的；有造诣的；达到了的

参考例句：

• Thanks to your help,we accomplished the task ahead of schedule.亏得你们帮忙,我们才提前完成了任务。
• Removal of excess heat is accomplished by means of a radiator.通过散热器完成多余热量的排出。

264 proprietor   

n.所有人；业主；经营者

参考例句：

• The proprietor was an old acquaintance of his.业主是他的一位旧相识。
• The proprietor of the corner grocery was a strange thing in my life.拐角杂货店店主是我生活中的一个怪物。

265 conglomerate   

n.综合商社，多元化集团公司

参考例句：

• The firm has been taken over by an American conglomerate.该公司已被美国一企业集团接管。
• An American conglomerate holds a major share in the company.一家美国的大联合企业持有该公司的大部分股份。

266 distressing   

a.使人痛苦的

参考例句：

• All who saw the distressing scene revolted against it. 所有看到这种悲惨景象的人都对此感到难过。
• It is distressing to see food being wasted like this. 这样浪费粮食令人痛心。

267 deprivation   

n.匮乏；丧失；夺去，贫困

参考例句：

• Many studies make it clear that sleep deprivation is dangerous.多实验都证实了睡眠被剥夺是危险的。
• Missing the holiday was a great deprivation.错过假日是极大的损失。

268 linen   

n.亚麻布，亚麻线，亚麻制品；adj.亚麻布制的，亚麻的

参考例句：

• The worker is starching the linen.这名工人正在给亚麻布上浆。
• Fine linen and cotton fabrics were known as well as wool.精细的亚麻织品和棉织品像羊毛一样闻名遐迩。

269 expedient   

adj.有用的，有利的；n.紧急的办法，权宜之计

参考例句：

• The government found it expedient to relax censorship a little.政府发现略微放宽审查是可取的。
• Every kind of expedient was devised by our friends.我们的朋友想出了各种各样的应急办法。

270 putrid   

adj.腐臭的；有毒的；已腐烂的；卑劣的

参考例句：

• To eat putrid food is liable to get sick.吃了腐败的食物容易生病。
• A putrid smell drove us from the room.一股腐臭的气味迫使我们离开这房间。

271 creeks   

n.小湾( creek的名词复数 )；小港；小河；小溪

参考例句：

• The prospect lies between two creeks. 矿区位于两条溪流之间。 来自辞典例句
• There was the excitement of fishing in country creeks with my grandpa on cloudy days. 有在阴雨天和姥爷一起到乡村河湾钓鱼的喜悦。 来自辞典例句

272 tranquil   

adj. 安静的, 宁静的, 稳定的, 不变的

参考例句：

• The boy disturbed the tranquil surface of the pond with a stick. 那男孩用棍子打破了平静的池面。
• The tranquil beauty of the village scenery is unique. 这乡村景色的宁静是绝无仅有的。

273 augments   

增加，提高，扩大( augment的名词复数 )

参考例句：

• He augments his income by teaching in the evening. 他通过晚上教书来增加收入。
• Neostigmine augments the motor activity of the small and large bowel. 新斯的明增强小肠和大肠的运动功能。

274 penetration   

n.穿透，穿人，渗透

参考例句：

• He is a man of penetration.他是一个富有洞察力的人。
• Our aim is to achieve greater market penetration.我们的目标是进一步打入市场。

275 promptly   

adv.及时地，敏捷地

参考例句：

• He paid the money back promptly.他立即还了钱。
• She promptly seized the opportunity his absence gave her.她立即抓住了因他不在场给她创造的机会。

276 quenched   

解（渴）( quench的过去式和过去分词 )； 终止（某事物）； （用水）扑灭（火焰等）； 将（热物体）放入水中急速冷却

参考例句：

• He quenched his thirst with a long drink of cold water. 他喝了好多冷水解渴。
• I quenched my thirst with a glass of cold beer. 我喝了一杯冰啤酒解渴。

277 turbid   

adj.混浊的，泥水的，浓的

参考例句：

• He found himself content to watch idly the sluggish flow of the turbid stream.他心安理得地懒洋洋地望着混浊的河水缓缓流着。
• The lake's water is turbid.这个湖里的水混浊。

278 precipitately   

adv.猛进地

参考例句：

• The number of civil wars continued to rise until about 1990 and then fell precipitately. 而国内战争的数量在1990年以前都有增加，1990年后则锐减。 来自互联网
• His wife and mistress, until an hour ago and inviolate were slipping precipitately from his control. 他的妻子和情妇，直到一小时前还是安安稳稳、不可侵犯的，现在却猛不防正从他的控制下溜走。 来自互联网

279 plunging   

adj.跳进的，突进的v.颠簸( plunge的现在分词 )；暴跌；骤降；突降

参考例句：

• War broke out again, plunging the people into misery and suffering. 战祸复发，生灵涂炭。 来自《现代汉英综合大词典》
• He is plunging into an abyss of despair. 他陷入了绝望的深渊。 来自《简明英汉词典》

280 steer   

vt.驾驶，为…操舵；引导；vi.驾驶

参考例句：

• If you push the car, I'll steer it.如果你来推车，我就来驾车。
• It's no use trying to steer the boy into a course of action that suits you.想说服这孩子按你的方式行事是徒劳的。

281 jaguar   

n.美洲虎

参考例句：

• He was green with envy when he saw my new Jaguar car.看见我那辆美洲虎牌新车，他非常妒忌。
• Should you meet a jaguar in the jungle,just turn slowly,walk away.But slowly,never look back.你在丛林中若碰上美洲虎，就慢慢转身走开，可一定要慢，切莫回头看。

282 jaguars   

n.（中、南美洲的）美洲虎( jaguar的名词复数 )

参考例句：

• Jaguars are largely nocturnal creatures. 美洲虎基本上是夜行动物。 来自辞典例句
• Jaguars (Panthera onca) once ranged from southern South America to theUnited States. 美洲虎曾经分布在北美洲南部和美洲南部。 来自互联网

283 perplexed   

adj.不知所措的

参考例句：

• The farmer felt the cow,went away,returned,sorely perplexed,always afraid of being cheated.那农民摸摸那头牛，走了又回来，犹豫不决，总怕上当受骗。
• The child was perplexed by the intricate plot of the story.这孩子被那头绪纷繁的故事弄得迷惑不解。

284 uncertainty   

n.易变，靠不住，不确知，不确定的事物

参考例句：

• Her comments will add to the uncertainty of the situation.她的批评将会使局势更加不稳定。
• After six weeks of uncertainty,the strain was beginning to take its toll.6个星期的忐忑不安后，压力开始产生影响了。

285 affected   

adj.不自然的，假装的

参考例句：

• She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
• His manners are affected.他的态度不自然。

286 trot   

n.疾走，慢跑；n.老太婆；现成译本；(复数）trots:腹泻（与the 连用）；v.小跑，快步走，赶紧

参考例句：

• They passed me at a trot.他们从我身边快步走过。
• The horse broke into a brisk trot.马突然快步小跑起来。

287 justify   

vt.证明…正当(或有理)，为…辩护

参考例句：

• He tried to justify his absence with lame excuses.他想用站不住脚的借口为自己的缺席辩解。
• Can you justify your rude behavior to me?你能向我证明你的粗野行为是有道理的吗？

288 enumeration   

n.计数，列举；细目；详表；点查

参考例句：

• Predictive Categoriesinclude six categories of prediction, namely Enumeration, Advance Labeling, Reporting,Recapitulation, Hypotheticality, and Question. 其中预设种类又包括列举(Enumeration)、提前标示(Advance Labeling)、转述(Reporting)、回顾(Recapitulation)、假设(Hypotheticality)和提问(Question)。 来自互联网
• Here we describe a systematic procedure which is basically "enumeration" in nature. 这里介绍一个本质上是属于“枚举法”的系统程序。 来自辞典例句

289 exhausted   

adj.极其疲惫的，精疲力尽的

参考例句：

• It was a long haul home and we arrived exhausted.搬运回家的这段路程特别长，到家时我们已筋疲力尽。
• Jenny was exhausted by the hustle of city life.珍妮被城市生活的忙乱弄得筋疲力尽。

290 imminent   

adj.即将发生的，临近的，逼近的

参考例句：

• The black clounds show that a storm is imminent.乌云预示暴风雨即将来临。
• The country is in imminent danger.国难当头。

291 starry   

adj.星光照耀的, 闪亮的

参考例句：

• He looked at the starry heavens.他瞧着布满星星的天空。
• I like the starry winter sky.我喜欢这满天星斗的冬夜。

292 vault   

n.拱形圆顶，地窖，地下室

参考例句：

• The vault of this cathedral is very high.这座天主教堂的拱顶非常高。
• The old patrician was buried in the family vault.这位老贵族埋在家族的墓地里。

293 attained   

（通常经过努力）实现( attain的过去式和过去分词 )； 达到； 获得； 达到（某年龄、水平、状况）

参考例句：

• She has attained the degree of Master of Arts. 她已获得文学硕士学位。
• Lu Hsun attained a high position in the republic of letters. 鲁迅在文坛上获得崇高的地位。

294 Augmented   

adj.增音的 动词augment的过去式和过去分词形式

参考例句：

• 'scientists won't be replaced," he claims, "but they will be augmented." 他宣称：“科学家不会被取代；相反，他们会被拓展。” 来自英汉非文学 - 科学史
• The impact of the report was augmented by its timing. 由于发表的时间选得好，这篇报导的影响更大了。

295 ascended   

v.上升，攀登( ascend的过去式和过去分词 )

参考例句：

• He has ascended into heaven. 他已经升入了天堂。 来自《简明英汉词典》
• The climbers slowly ascended the mountain. 爬山运动员慢慢地登上了这座山。 来自《简明英汉词典》

296 bent   

n.爱好，癖好；adj.弯的；决心的，一心的

参考例句：

• He was fully bent upon the project.他一心扑在这项计划上。
• We bent over backward to help them.我们尽了最大努力帮助他们。

297 modifications   

n.缓和( modification的名词复数 )；限制；更改；改变

参考例句：

• The engine was pulled apart for modifications and then reassembled. 发动机被拆开改型，然后再组装起来。 来自《简明英汉词典》
• The original plan had undergone fairly extensive modifications. 原计划已经作了相当大的修改。 来自《简明英汉词典》

298 inversion   

n.反向，倒转，倒置

参考例句：

• But sometimes there is an unusual weather condition called a temperature inversion.但有时会有一种被称作“温度逆增”的不平常的天气状态。
• And finally,we made a discussion on the problems in the cooperative inversion.最后，对联合反演中存在的问题进行了讨论。

299 capes   

碎谷； 斗篷( cape的名词复数 )； 披肩； 海角； 岬

参考例句：

• It was cool and they were putting on their capes. 夜里阴冷，他们都穿上了披风。
• The pastor smiled to give son's two Capes five cents money. 牧师微笑着给了儿子二角五分钱。

300 inverted   

adj.反向的，倒转的v.使倒置，使反转( invert的过去式和过去分词 )

参考例句：

• Only direct speech should go inside inverted commas. 只有直接引语应放在引号内。
• Inverted flight is an acrobatic manoeuvre of the plane. 倒飞是飞机的一种特技动作。 来自《简明英汉词典》

301 intervals   

n.[军事]间隔( interval的名词复数 )；间隔时间；[数学]区间；（戏剧、电影或音乐会的）幕间休息

参考例句：

• The forecast said there would be sunny intervals and showers. 预报间晴，有阵雨。
• Meetings take place at fortnightly intervals. 每两周开一次会。

302 expressive   

adj.表现的，表达…的，富于表情的

参考例句：

• Black English can be more expressive than standard English.黑人所使用的英语可能比正式英语更有表现力。
• He had a mobile,expressive,animated face.他有一张多变的，富于表情的，生动活泼的脸。

303 antelope   

n.羚羊；羚羊皮

参考例句：

• Choosing the antelope shows that China wants a Green Olympics.选择藏羚羊表示中国需要绿色奥运。
• The tiger was dragging the antelope across the field.老虎拖着羚羊穿过原野。

304 allusions   

暗指，间接提到( allusion的名词复数 )

参考例句：

• We should not use proverbs and allusions indiscriminately. 不要滥用成语典故。
• The background lent itself to allusions to European scenes. 眼前的情景容易使人联想到欧洲风光。

305 solitudes   

n.独居( solitude的名词复数 )；孤独；荒僻的地方；人迹罕至的地方

参考例句：

• Africa is going at last to give up the secret of its vast solitudes. 非洲无边无际的荒野的秘密就要被揭穿了。 来自辞典例句
• The scientist has spent six months in the solitudes of the Antarctic. 这位科学家已经在人迹罕至的南极待了六个月了。 来自互联网

306 adorned   

[计]被修饰的

参考例句：

• The walls were adorned with paintings. 墙上装饰了绘画。
• And his coat was adorned with a flamboyant bunch of flowers. 他的外套上面装饰着一束艳丽刺目的鲜花。

307 animated   

adj.生气勃勃的，活跃的，愉快的

参考例句：

• His observations gave rise to an animated and lively discussion.他的言论引起了一场气氛热烈而活跃的讨论。
• We had an animated discussion over current events last evening.昨天晚上我们热烈地讨论时事。

308 reposed   

v.将（手臂等）靠在某人（某物）上( repose的过去式和过去分词 )

参考例句：

• Mr. Cruncher reposed under a patchwork counterpane, like a Harlequin at home. 克朗彻先生盖了一床白衲衣图案的花哨被子，像是呆在家里的丑角。 来自英汉文学 - 双城记
• An old man reposed on a bench in the park. 一位老人躺在公园的长凳上。 来自辞典例句

309 repose   

v.(使)休息；n.安息

参考例句：

• Don't disturb her repose.不要打扰她休息。
• Her mouth seemed always to be smiling,even in repose.她的嘴角似乎总是挂着微笑，即使在睡眠时也是这样。

310 clumps   

n.（树、灌木、植物等的）丛、簇( clump的名词复数 )；（土、泥等）团；块；笨重的脚步声v.（树、灌木、植物等的）丛、簇( clump的第三人称单数 )；（土、泥等）团；块；笨重的脚步声

参考例句：

• These plants quickly form dense clumps. 这些植物很快形成了浓密的树丛。 来自《简明英汉词典》
• The bulbs were over. All that remained of them were clumps of brown leaves. 这些鳞茎死了，剩下的只是一丛丛的黃叶子。 来自《简明英汉词典》

311 disdaining   

鄙视( disdain的现在分词 )； 不屑于做，不愿意做

参考例句：

312 disposition   

n.性情，性格；意向，倾向；排列，部署

参考例句：

• He has made a good disposition of his property.他已对财产作了妥善处理。
• He has a cheerful disposition.他性情开朗。

313 browsing   

v.吃草( browse的现在分词 )；随意翻阅；（在商店里）随便看看；（在计算机上）浏览信息

参考例句：

• He sits browsing over[through] a book. 他坐着翻阅书籍。 来自《简明英汉词典》
• Cattle is browsing in the field. 牛正在田里吃草。 来自《简明英汉词典》

314 roes   

n.獐( roe的名词复数 )；獐鹿；鱼卵；鱼精液

参考例句：

• Thy two breasts are like two young roes that are twins. 3你的两乳好像一对小鹿，就是母鹿双生的。 来自互联网
• Roes comes out with the strangest remarks at times. 罗斯不时地发表些极怪的议论。 来自互联网

315 sleek   

adj.光滑的，井然有序的；v.使光滑，梳拢

参考例句：

• Women preferred sleek,shiny hair with little decoration.女士们更喜欢略加修饰的光滑闪亮型秀发。
• The horse's coat was sleek and glossy.这匹马全身润泽有光。

316 spotted   

adj.有斑点的，斑纹的，弄污了的

参考例句：

• The milkman selected the spotted cows,from among a herd of two hundred.牛奶商从一群200头牛中选出有斑点的牛。
• Sam's shop stocks short spotted socks.山姆的商店屯积了有斑点的短袜。

317 skilful   

(=skillful)adj.灵巧的，熟练的

参考例句：

• The more you practise,the more skilful you'll become.练习的次数越多，熟练的程度越高。
• He's not very skilful with his chopsticks.他用筷子不大熟练。

318 indifference   

n.不感兴趣，不关心，冷淡，不在乎

参考例句：

• I was disappointed by his indifference more than somewhat.他的漠不关心使我很失望。
• He feigned indifference to criticism of his work.他假装毫不在意别人批评他的作品。

319 killing   

n.巨额利润；突然赚大钱，发大财

参考例句：

• Investors are set to make a killing from the sell-off.投资者准备清仓以便大赚一笔。
• Last week my brother made a killing on Wall Street.上个周我兄弟在华尔街赚了一大笔。

320 irritable   

adj.急躁的；过敏的；易怒的

参考例句：

• He gets irritable when he's got toothache.他牙一疼就很容易发脾气。
• Our teacher is an irritable old lady.She gets angry easily.我们的老师是位脾气急躁的老太太。她很容易生气。

321 fatten   

v.使肥，变肥

参考例句：

• The new feed can fatten the chicken up quickly enough for market.新饲料能使鸡长得更快，以适应市场需求。
• We keep animals in pens to fatten them.我们把动物关在围栏里把它们养肥。

322 nourishment   

n.食物，营养品；营养情况

参考例句：

• Lack of proper nourishment reduces their power to resist disease.营养不良降低了他们抵抗疾病的能力。
• He ventured that plants draw part of their nourishment from the air.他大胆提出植物从空气中吸收部分养分的观点。

323 shrubs   

灌木( shrub的名词复数 )

参考例句：

• The gardener spent a complete morning in trimming those two shrubs. 园丁花了整个上午的时间修剪那两处灌木林。
• These shrubs will need more light to produce flowering shoots. 这些灌木需要更多的光照才能抽出开花的新枝。

324 solitarily   

adv.独自一人地，寂寞地

参考例句：

• I paced and down on the crossroad, seeing my shadow walking solitarily! 我徘徊在十字街口，看着影子孤独的行走！ 来自互联网
• A hermit chooses to live solitarily. 隐士选择独自一人生活。 来自互联网

325 withered   

adj. 枯萎的，干瘪的，（人身体的部分器官）因病萎缩的或未发育良好的 动词wither的过去式和过去分词形式

参考例句：

• The grass had withered in the warm sun. 这些草在温暖的阳光下枯死了。
• The leaves of this tree have become dry and withered. 这棵树下的叶子干枯了。

326 prodigious   

adj.惊人的，奇妙的；异常的；巨大的；庞大的

参考例句：

• This business generates cash in prodigious amounts.这种业务收益丰厚。
• He impressed all who met him with his prodigious memory.他惊人的记忆力让所有见过他的人都印象深刻。

327 purely   

adv.纯粹地，完全地

参考例句：

• I helped him purely and simply out of friendship.我帮他纯粹是出于友情。
• This disproves the theory that children are purely imitative.这证明认为儿童只会单纯地模仿的理论是站不住脚的。

328 lapse   

n.过失，流逝，失效，抛弃信仰，间隔；vi.堕落，停止，失效，流逝；vt.使失效

参考例句：

• The incident was being seen as a serious security lapse.这一事故被看作是一次严重的安全疏忽。
• I had a lapse of memory.我记错了。

329 dispersed   

adj. 被驱散的, 被分散的, 散布的

参考例句：

• The clouds dispersed themselves. 云散了。
• After school the children dispersed to their homes. 放学后，孩子们四散回家了。

330 groves   

树丛，小树林( grove的名词复数 )

参考例句：

• The early sun shone serenely on embrowned groves and still green fields. 朝阳宁静地照耀着已经发黄的树丛和还是一片绿色的田地。
• The trees grew more and more in groves and dotted with old yews. 那里的树木越来越多地长成了一簇簇的小丛林，还点缀着几棵老紫杉树。

331 resonant   

adj.(声音)洪亮的，共鸣的

参考例句：

• She has a resonant voice.她的嗓子真亮。
• He responded with a resonant laugh.他报以洪亮的笑声。

332 maturity   

n.成熟；完成；(支票、债券等)到期

参考例句：

• These plants ought to reach maturity after five years.这些植物五年后就该长成了。
• This is the period at which the body attains maturity.这是身体发育成熟的时期。

333 fermented   

v.（使）发酵( ferment的过去式和过去分词 )；（使）激动；骚动；骚扰

参考例句：

• When wine is fermented, it gives off gas. 酒发酵时发出气泡。 来自《简明英汉词典》
• His speeches fermented trouble among the workers. 他的演讲在工人中引起骚动。 来自辞典例句

334 refreshing   

adj.使精神振作的，使人清爽的，使人喜欢的

参考例句：

• I find it'so refreshing to work with young people in this department.我发现和这一部门的青年一起工作令人精神振奋。
• The water was cold and wonderfully refreshing.水很涼，特别解乏提神。

335 scaly   

adj.鱼鳞状的；干燥粗糙的

参考例句：

• Reptiles possess a scaly,dry skin.爬行类具有覆盖着鳞片的干燥皮肤。
• The iron pipe is scaly with rust.铁管子因为生锈一片片剥落了。

336 gusts   

一阵强风( gust的名词复数 )； （怒、笑等的）爆发； （感情的）迸发； 发作

参考例句：

• Her profuse skirt bosomed out with the gusts. 她的宽大的裙子被风吹得鼓鼓的。
• Turbulence is defined as a series of irregular gusts. 紊流定义为一组无规则的突风。

337 procure   

vt.获得，取得，促成；vi.拉皮条

参考例句：

• Can you procure some specimens for me?你能替我弄到一些标本吗？
• I'll try my best to procure you that original French novel.我将尽全力给你搞到那本原版法国小说。

338 reverberation   

反响； 回响； 反射； 反射物

参考例句：

• It was green as an emerald, and the reverberation was stunning. 它就象翠玉一样碧绿，回响震耳欲聋。
• Just before dawn he was assisted in waking by the abnormal reverberation of familiar music. 在天将破晓的时候，他被一阵熟悉的，然而却又是反常的回声惊醒了。

339 superintendent   

n.监督人，主管，总监；(英国)警务长

参考例句：

• He was soon promoted to the post of superintendent of Foreign Trade.他很快就被擢升为对外贸易总监。
• He decided to call the superintendent of the building.他决定给楼房管理员打电话。

340 plantations   

n.种植园，大农场( plantation的名词复数 )

参考例句：

• Soon great plantations, supported by slave labor, made some families very wealthy. 不久之后出现了依靠奴隶劳动的大庄园，使一些家庭成了富豪。 来自英汉非文学 - 政府文件
• Winterborne's contract was completed, and the plantations were deserted. 维恩特波恩的合同完成后，那片林地变得荒废了。 来自辞典例句

341 prosper   

v.成功，兴隆，昌盛；使成功，使昌隆，繁荣

参考例句：

• With her at the wheel,the company began to prosper.有了她当主管，公司开始兴旺起来。
• It is my earnest wish that this company will continue to prosper.我真诚希望这家公司会继续兴旺发达。

342 computed   

adj.[医]计算的，使用计算机的v.计算，估算( compute的过去式和过去分词 )

参考例句：

• He computed that the project would take seven years to complete. 他估计这项计划要花七年才能完成。 来自《简明英汉词典》
• Resolving kernels and standard errors can also be computed for each block. 还可以计算每个块体的分辨核和标准误差。 来自辞典例句

343 statistical   

adj.统计的，统计学的

参考例句：

• He showed the price fluctuations in a statistical table.他用统计表显示价格的波动。
• They're making detailed statistical analysis.他们正在做具体的统计分析。

344 proprietors   

n.所有人，业主( proprietor的名词复数 )

参考例句：

• These little proprietors of businesses are lords indeed on their own ground. 这些小业主们，在他们自己的行当中，就是真正的至高无上的统治者。 来自英汉文学 - 嘉莉妹妹
• Many proprietors try to furnish their hotels with antiques. 许多经营者都想用古董装饰他们的酒店。 来自辞典例句

345 annually   

adv.一年一次，每年

参考例句：

• Many migratory birds visit this lake annually.许多候鸟每年到这个湖上作短期逗留。
• They celebrate their wedding anniversary annually.他们每年庆祝一番结婚纪念日。

346 fattened   

v.喂肥( fatten的过去式和过去分词 )；养肥（牲畜）；使（钱）增多；使（公司）升值

参考例句：

• The piglets are taken from the sow to be fattened for market. 这些小猪被从母猪身边带走，好育肥上市。
• Those corrupt officials fattened themselves by drinking the people's life-blood. 那些贪官污吏用民脂民膏养肥了自己。 来自《现代汉英综合大词典》

347 tormented   

饱受折磨的

参考例句：

• The knowledge of his guilt tormented him. 知道了自己的罪责使他非常痛苦。
• He had lain awake all night, tormented by jealousy. 他彻夜未眠，深受嫉妒的折磨。

348 missionary   

adj.教会的，传教(士)的；n.传教士

参考例句：

• She taught in a missionary school for a couple of years.她在一所教会学校教了两年书。
• I hope every member understands the value of missionary work. 我希望教友都了解传教工作的价值。

349 monks   

n.修道士，僧侣( monk的名词复数 )

参考例句：

• The monks lived a very ascetic life. 僧侣过着很清苦的生活。
• He had been trained rigorously by the monks. 他接受过修道士的严格训练。 来自《简明英汉词典》

350 dependence   

n.依靠，依赖；信任，信赖；隶属

参考例句：

• Doctors keep trying to break her dependence of the drug.医生们尽力使她戒除毒瘾。
• He was freed from financial dependence on his parents.他在经济上摆脱了对父母的依赖。

351 monarchy   

n.君主，最高统治者；君主政体，君主国

参考例句：

• The monarchy in England plays an important role in British culture.英格兰的君主政体在英国文化中起重要作用。
• The power of the monarchy in Britain today is more symbolical than real.今日英国君主的权力多为象徵性的，无甚实际意义。

352 calves   

n.(calf的复数)笨拙的男子，腓；腿肚子( calf的名词复数 )；牛犊；腓；小腿肚v.生小牛( calve的第三人称单数 )；（冰川）崩解；生（小牛等），产（犊）；使（冰川）崩解

参考例句：

• a cow suckling her calves 给小牛吃奶的母牛
• The calves are grazed intensively during their first season. 小牛在生长的第一季里集中喂养。 来自《简明英汉词典》

353 multiplication   

n.增加，增多，倍增；增殖，繁殖；乘法

参考例句：

• Our teacher used to drum our multiplication tables into us.我们老师过去老是让我们反覆背诵乘法表。
• The multiplication of numbers has made our club building too small.会员的增加使得我们的俱乐部拥挤不堪。

354 apparatus   

n.装置，器械；器具，设备

参考例句：

• The school's audio apparatus includes films and records.学校的视听设备包括放映机和录音机。
• They had a very refined apparatus.他们有一套非常精良的设备。

355 treatise   

n.专著；(专题)论文

参考例句：

• The doctor wrote a treatise on alcoholism.那位医生写了一篇关于酗酒问题的论文。
• This is not a treatise on statistical theory.这不是一篇有关统计理论的论文。

356 memoirs   

n.回忆录；回忆录传( mem,自oir的名词复数)

参考例句：

• Her memoirs were ghostwritten. 她的回忆录是由别人代写的。
• I watched a trailer for the screenplay of his memoirs. 我看过以他的回忆录改编成电影的预告片。 来自《简明英汉词典》

357 cylindrical   

adj.圆筒形的

参考例句：

• huge cylindrical gas tanks 巨大的圆柱形贮气罐
• Beer cans are cylindrical. 啤酒罐子是圆筒形的。

358 admiration   

n.钦佩，赞美，羡慕

参考例句：

• He was lost in admiration of the beauty of the scene.他对风景之美赞不绝口。
• We have a great admiration for the gold medalists.我们对金牌获得者极为敬佩。

359 friction   

n.摩擦，摩擦力

参考例句：

• When Joan returned to work,the friction between them increased.琼回来工作后，他们之间的摩擦加剧了。
• Friction acts on moving bodies and brings them to a stop.摩擦力作用于运动着的物体，并使其停止。

360 physiological   

adj.生理学的，生理学上的

参考例句：

• He bought a physiological book.他买了一本生理学方面的书。
• Every individual has a physiological requirement for each nutrient.每个人对每种营养成分都有一种生理上的需要。

361 heterogeneous   

adj.庞杂的；异类的

参考例句：

• There is a heterogeneous mass of papers in the teacher's office.老师的办公室里堆满了大批不同的论文。
• America has a very heterogeneous population.美国人口是由不同种族组成的。

362 previously   

adv.以前，先前（地）

参考例句：

• The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
• Let me digress for a moment and explain what had happened previously.让我岔开一会儿，解释原先发生了什么。

363 apparatuses   

n.器械； 装置； 设备； 仪器

参考例句：

• That magazine covers all kinds of heating apparatuses. 那本杂志论及所有暖气装置。 来自辞典例句
• Apparatuses and methods for preparing sol-gel solutions are provided. 提供制备溶胶-凝胶溶液的装置和方法。 来自互联网

364 eels   

abbr. 电子发射器定位系统（=electronic emitter location system）

参考例句：

• Eels have been on the feed in the Lower Thames. 鳗鱼在泰晤士河下游寻食。
• She bought some eels for dinner. 她买回一些鳗鱼做晚餐。

365 imperturbable   

adj.镇静的

参考例句：

• Thomas,of course,was cool and aloof and imperturbable.当然，托马斯沉着、冷漠，不易激动。
• Edward was a model of good temper and his equanimity imperturbable.爱德华是个典型的好性子，他总是沉着镇定。

366 apathy   

n.漠不关心，无动于衷；冷淡

参考例句：

• He was sunk in apathy after his failure.他失败后心恢意冷。
• She heard the story with apathy.她听了这个故事无动于衷。

367 vanquished   

v.征服( vanquish的过去式和过去分词 )；战胜；克服；抑制

参考例句：

• She had fought many battles, vanquished many foes. 她身经百战，挫败过很多对手。 来自《简明英汉词典》
• I vanquished her coldness with my assiduity. 我对她关心照顾从而消除了她的冷淡。 来自《现代英汉综合大词典》

368 ascends   

v.上升，攀登( ascend的第三人称单数 )

参考例句：

• The azygos vein ascends in the right paravertebral gutter. 奇静脉在右侧脊柱旁沟内上升。 来自辞典例句
• The mortality curve ascends gradually to a plateau at age 65. 死亡曲线逐渐上升，到65岁时成平稳状态。 来自辞典例句

369 torpedo   

n.水雷，地雷；v.用鱼雷破坏

参考例句：

• His ship was blown up by a torpedo.他的船被一枚鱼雷炸毁了。
• Torpedo boats played an important role during World War Two.鱼雷艇在第二次世界大战中发挥了重要作用。

370 zinc   

n.锌；vt.在...上镀锌

参考例句：

• Brass is formed by the fusion of copper and zinc.黄铜是通过铜和锌的熔合而成的。
• Zinc is used to protect other metals from corrosion.锌被用来保护其他金属不受腐蚀。

371 dread   

vt.担忧，忧虑；惧怕，不敢；n.担忧，畏惧

参考例句：

• We all dread to think what will happen if the company closes.我们都不敢去想一旦公司关门我们该怎么办。
• Her heart was relieved of its blankest dread.她极度恐惧的心理消除了。

372 profess   

v.声称，冒称，以...为业，正式接受入教，表明信仰

参考例句：

• I profess that I was surprised at the news.我承认这消息使我惊讶。
• What religion does he profess?他信仰哪种宗教？

373 interrogated   

v.询问( interrogate的过去式和过去分词 )；审问；（在计算机或其他机器上）查询

参考例句：

• He was interrogated by the police for over 12 hours. 他被警察审问了12个多小时。
• Two suspects are now being interrogated in connection with the killing. 与杀人案有关的两名嫌疑犯正在接受审讯。 来自《简明英汉词典》

374 impunity   

n.(惩罚、损失、伤害等的)免除

参考例句：

• You will not escape with impunity.你不可能逃脱惩罚。
• The impunity what compulsory insurance sets does not include escapement.交强险规定的免责范围不包括逃逸。

375 mariners   

海员，水手（mariner的复数形式）

参考例句：

• Mariners were also able to fix their latitude by using an instrument called astrolabe. 海员们还可使用星盘这种仪器确定纬度。
• The ancient mariners traversed the sea. 古代的海员漂洋过海。

376 literally   

adv.照字面意义，逐字地；确实

参考例句：

• He translated the passage literally.他逐字逐句地翻译这段文字。
• Sometimes she would not sit down till she was literally faint.有时候，她不走到真正要昏厥了，决不肯坐下来。

377 Mediterranean   

adj.地中海的；地中海沿岸的

参考例句：

• The houses are Mediterranean in character.这些房子都属地中海风格。
• Gibraltar is the key to the Mediterranean.直布罗陀是地中海的要冲。

378 fragrant   

adj.芬香的，馥郁的，愉快的

参考例句：

• The Fragrant Hills are exceptionally beautiful in late autumn.深秋的香山格外美丽。
• The air was fragrant with lavender.空气中弥漫薰衣草香。

379 agility   

n.敏捷，活泼

参考例句：

• The boy came upstairs with agility.那男孩敏捷地走上楼来。
• His intellect and mental agility have never been in doubt.他的才智和机敏从未受到怀疑。

380 intoxicate   

vt.使喝醉，使陶醉，使欣喜若狂

参考例句：

• Wine has the power to intoxicate.酒能醉人。
• Cherishing a rose means to intoxicate yourself on her beauty more than pull her throns out.喜欢玫瑰意思是要我们陶醉它的美丽，而不是去除它的刺。

381 scouring   

擦[洗]净，冲刷，洗涤

参考例句：

• The police are scouring the countryside for the escaped prisoners. 警察正在搜索整个乡村以捉拿逃犯。
• This is called the scouring train in wool processing. 这被称为羊毛加工中的洗涤系列。

382 hoofs   

n.（兽的）蹄，马蹄( hoof的名词复数 )v.（兽的）蹄，马蹄( hoof的第三人称单数 )

参考例句：

• The stamp of the horse's hoofs on the wooden floor was loud. 马蹄踏在木头地板上的声音很响。 来自辞典例句
• The noise of hoofs called him back to the other window. 马蹄声把他又唤回那扇窗子口。 来自辞典例句

383 aquatic   

adj.水生的，水栖的

参考例句：

• Aquatic sports include swimming and rowing.水上运动包括游泳和划船。
• We visited an aquatic city in Italy.我们在意大利访问过一个水上城市。

384 bellies   

n.肚子( belly的名词复数 )；腹部；（物体的）圆形或凸起部份；腹部…形的

参考例句：

• They crawled along on their bellies. 他们匍匐前进。
• starving children with huge distended bellies 鼓着浮肿肚子的挨饿儿童

385 harpoons   

n.鱼镖，鱼叉( harpoon的名词复数 )v.鱼镖，鱼叉( harpoon的第三人称单数 )

参考例句：

• Greenpeace hopes to position its boats between the harpoons and the whales. 绿色和平希望他们的船能开到港口与鲸鱼群之间的地方。 来自互联网
• NIV Can you fill his hide with harpoons or his head with fishing spears? 7[和合]你能用倒钩枪扎满它的皮，能用鱼叉叉满它的头吗？ 来自互联网

386 stunned   

adj. 震惊的，惊讶的 动词stun的过去式和过去分词

参考例句：

• The fall stunned me for a moment. 那一下摔得我昏迷了片刻。
• The leaders of the Kopper Company were then stunned speechless. 科伯公司的领导们当时被惊得目瞪口呆。

387 victorious   

adj.胜利的，得胜的

参考例句：

• We are certain to be victorious.我们定会胜利。
• The victorious army returned in triumph.获胜的部队凯旋而归。

388 eluding   

v.（尤指机敏地）避开( elude的现在分词 )；逃避；躲避；使达不到

参考例句：

• He saw no way of eluding Featherstone's stupid demand. 费瑟斯通的愚蠢要求使他走投无路。 来自辞典例句
• The fox succeeded in eluding the hunters. 这狐狸成功地避过了猎手。 来自辞典例句

389 regain   

vt.重新获得，收复，恢复

参考例句：

• He is making a bid to regain his World No.1 ranking.他正为重登世界排名第一位而努力。
• The government is desperate to regain credibility with the public.政府急于重新获取公众的信任。

390 belly   

n.肚子，腹部；(像肚子一样)鼓起的部分，膛

参考例句：

• The boss has a large belly.老板大腹便便。
• His eyes are bigger than his belly.他眼馋肚饱。

391 intestines   

n.肠( intestine的名词复数 )

参考例句：

• Perhaps the most serious problems occur in the stomach and intestines. 最严重的问题或许出现在胃和肠里。 来自辞典例句
• The traps of carnivorous plants function a little like the stomachs and small intestines of animals. 食肉植物的捕蝇器起着动物的胃和小肠的作用。 来自辞典例句

392 abdominal   

adj.腹（部）的，下腹的；n.腹肌

参考例句：

• The abdominal aorta is normally smaller than the thoracic aorta.腹主动脉一般比胸主动脉小。
• Abdominal tissues sometimes adhere after an operation.手术之后腹部有时会出现粘连。

393 bristled   

adj. 直立的，多刺毛的 动词bristle的过去式和过去分词

参考例句：

• They bristled at his denigrating description of their activities. 听到他在污蔑他们的活动，他们都怒发冲冠。
• All of us bristled at the lawyer's speech insulting our forefathers. 听到那个律师在讲演中污蔑我们的祖先，大家都气得怒发冲冠。

394 habitually   

ad.习惯地，通常地

参考例句：

• The pain of the disease caused him habitually to furrow his brow. 病痛使他习惯性地紧皱眉头。
• Habitually obedient to John, I came up to his chair. 我已经习惯于服从约翰，我来到他的椅子跟前。

395 elongated   

v.延长，加长( elongate的过去式和过去分词 )

参考例句：

• Modigliani's women have strangely elongated faces. 莫迪里阿尼画中的妇女都长着奇长无比的脸。
• A piece of rubber can be elongated by streching. 一块橡皮可以拉长。 来自《用法词典》

396 aperture   

n.孔，隙，窄的缺口

参考例句：

• The only light came through a narrow aperture.仅有的光亮来自一个小孔。
• We saw light through a small aperture in the wall.我们透过墙上的小孔看到了亮光。

397 mucous   

adj. 黏液的，似黏液的

参考例句：

• Healthy,skin,mucous membranes,and cilia are natural barriers to many viruses.健康的皮肤，粘膜和纤毛是许多病毒的天然屏障。
• Seromucous glands contain both mucous and serous cells.浆粘液腺既含有粘液性细胞，又含有浆液性细胞。

398 attains   

（通常经过努力）实现( attain的第三人称单数 )； 达到； 获得； 达到（某年龄、水平、状况）

参考例句：

• This is the period at which the body attains maturity. 这是身体发育成熟的时期。
• The temperature a star attains is determined by its mass. 恒星所达到的温度取决于它的质量。

399 respiration   

n.呼吸作用；一次呼吸；植物光合作用

参考例句：

• They tried artificial respiration but it was of no avail.他们试做人工呼吸，可是无效。
• They made frequent checks on his respiration,pulse and blood.他们经常检查他的呼吸、脉搏和血液。

400 decomposing   

腐烂( decompose的现在分词 )； （使）分解； 分解（某物质、光线等）

参考例句：

• The air was filled with the overpowering stench of decomposing vegetation. 空气中充满了令人难以忍受的腐烂植物的恶臭。
• Heat was obtained from decomposing manures and hot air flues. 靠肥料分解和烟道为植物提供热量。

401 atmospheric   

adj.大气的，空气的；大气层的；大气所引起的

参考例句：

• Sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
• Clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。

402 reptile   

n.爬行动物；两栖动物

参考例句：

• The frog is not a true reptile.青蛙并非真正的爬行动物。
• So you should not be surprised to see someone keep a reptile as a pet.所以，你不必惊奇有人养了一只爬行动物作为宠物。

403 moss   

n.苔，藓，地衣

参考例句：

• Moss grows on a rock.苔藓生在石头上。
• He was found asleep on a pillow of leaves and moss.有人看见他枕着树叶和苔藓睡着了。

404 cork   

n.软木，软木塞

参考例句：

• We heard the pop of a cork.我们听见瓶塞砰的一声打开。
• Cork is a very buoyant material.软木是极易浮起的材料。

405 vessels   

n.血管( vessel的名词复数 )；船；容器；（具有特殊品质或接受特殊品质的）人

参考例句：

• The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
• All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》

406 vessel   

n.船舶；容器，器皿；管，导管，血管

参考例句：

• The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。
• You should put the water into a vessel.你应该把水装入容器中。

407 exterior   

adj.外部的，外在的；表面的

参考例句：

• The seed has a hard exterior covering.这种子外壳很硬。
• We are painting the exterior wall of the house.我们正在给房子的外墙涂漆。

408 bifurcated   

a.分为两部分

参考例句：

• Over the past 15 years the marketplace for art books has bifurcated. 过去15年里，卖艺术类书籍的市场逐渐分化。
• This bifurcated view was reflected in how U.S. officials described the trip. 这种一分为二的观点也反映在美国官员自己对访华之行的描述上。

409 temerity   

n.鲁莽，冒失

参考例句：

• He had the temerity to ask for higher wages after only a day's work.只工作了一天，他就蛮不讲理地要求增加工资。
• Tins took some temerity,but it was fruitless.这件事做得有点莽撞，但结果还是无用。

410 numbness   

n.无感觉，麻木，惊呆

参考例句：

• She was fighting off the numbness of frostbite. 她在竭力摆脱冻僵的感觉。 来自《简明英汉词典》
• Sometimes they stay dead, causing' only numbness. 有时，它们没有任何反应，只会造成麻木。 来自时文部分

411 twitching   

n.颤搐

参考例句：

• The child in a spasm kept twitching his arms and legs. 那个害痉挛的孩子四肢不断地抽搐。 来自《现代汉英综合大词典》
• My eyelids keep twitching all the time. 我眼皮老是跳。 来自《现代汉英综合大词典》

412 vibration   

n.颤动，振动；摆动

参考例句：

• There is so much vibration on a ship that one cannot write.船上的震动大得使人无法书写。
• The vibration of the window woke me up.窗子的震动把我惊醒了。

413 intensity   

n.强烈，剧烈；强度；烈度

参考例句：

• I didn't realize the intensity of people's feelings on this issue.我没有意识到这一问题能引起群情激奋。
• The strike is growing in intensity.罢工日益加剧。

414 paralytic   

adj. 瘫痪的 n. 瘫痪病人

参考例句：

• She was completely paralytic last night.她昨天晚上喝得酩酊大醉。
• She rose and hobbled to me on her paralytic legs and kissed me.她站起来，拖着她那麻痹的双腿一瘸一拐地走到我身边，吻了吻我。

415 savages   

未开化的人，野蛮人( savage的名词复数 )

参考例句：

• There're some savages living in the forest. 森林里居住着一些野人。
• That's an island inhabited by savages. 那是一个野蛮人居住的岛屿。

416 joints   

接头( joint的名词复数 )； 关节； 公共场所（尤指价格低廉的饮食和娱乐场所） （非正式）； 一块烤肉 （英式英语）

参考例句：

• Expansion joints of various kinds are fitted on gas mains. 各种各样的伸缩接头被安装在煤气的总管道上了。
• Expansion joints of various kinds are fitted on steam pipes. 各种各样的伸缩接头被安装在蒸气管道上了。

417 irritation   

n.激怒，恼怒，生气

参考例句：

• He could not hide his irritation that he had not been invited.他无法掩饰因未被邀请而生的气恼。
• Barbicane said nothing,but his silence covered serious irritation.巴比康什么也不说，但是他的沉默里潜伏着阴郁的怒火。

418 secretion   

n.分泌

参考例句：

• Is there much secretion from your eyes?你眼里的分泌物多吗？
• In addition,excessive secretion of oil,water scarcity are also major factors.除此之外，油脂分泌过盛、缺水也都是主要因素。

419 simultaneously   

adv.同时发生地，同时进行地

参考例句：

• The radar beam can track a number of targets almost simultaneously.雷达波几乎可以同时追着多个目标。
• The Windows allow a computer user to execute multiple programs simultaneously.Windows允许计算机用户同时运行多个程序。

420 faculty   

n.才能；学院，系；(学院或系的)全体教学人员

参考例句：

• He has a great faculty for learning foreign languages.他有学习外语的天赋。
• He has the faculty of saying the right thing at the right time.他有在恰当的时候说恰当的话的才智。

421 membrane   

n.薄膜，膜皮，羊皮纸

参考例句：

• A vibrating membrane in the ear helps to convey sounds to the brain.耳膜的振动帮助声音传送到大脑。
• A plastic membrane serves as selective diffusion barrier.一层塑料薄膜起着选择性渗透屏障的作用。

422 dart   

v.猛冲，投掷；n.飞镖，猛冲

参考例句：

• The child made a sudden dart across the road.那小孩突然冲过马路。
• Markov died after being struck by a poison dart.马尔科夫身中毒镖而亡。

423 darting   

v.投掷，投射( dart的现在分词 )；向前冲，飞奔

参考例句：

• Swallows were darting through the clouds. 燕子穿云急飞。 来自《现代英汉综合大词典》
• Swallows were darting through the air. 燕子在空中掠过。 来自辞典例句

424 solely   

adv.仅仅，唯一地

参考例句：

• Success should not be measured solely by educational achievement.成功与否不应只用学业成绩来衡量。
• The town depends almost solely on the tourist trade.这座城市几乎完全靠旅游业维持。

425 vigour   

（=vigor）n.智力，体力，精力

参考例句：

• She is full of vigour and enthusiasm.她有热情，有朝气。
• At 40,he was in his prime and full of vigour.他40岁时正年富力强。

426 captivity   

n.囚禁；被俘；束缚

参考例句：

• A zoo is a place where live animals are kept in captivity for the public to see.动物园是圈养动物以供公众观看的场所。
• He was held in captivity for three years.他被囚禁叁年。

427 accustoms   

v.（使）习惯于( accustom的第三人称单数 )

参考例句：

• It's like staying in a fish market and getting used to the stink; long exposure to a bad environment accustoms one to evil ways. 如入鲍鱼之肆，久而不闻其臭。 来自《现代汉英综合大词典》

428 imprisonment   

n.关押，监禁，坐牢

参考例句：

• His sentence was commuted from death to life imprisonment.他的判决由死刑减为无期徒刑。
• He was sentenced to one year's imprisonment for committing bigamy.他因为犯重婚罪被判入狱一年。

429 devour   

v.吞没；贪婪地注视或谛听，贪读；使着迷

参考例句：

• Larger fish devour the smaller ones.大鱼吃小鱼。
• Beauty is but a flower which wrinkle will devour.美只不过是一朵，终会被皱纹所吞噬。

430 proximity   

n.接近，邻近

参考例句：

• Marriages in proximity of blood are forbidden by the law.法律规定禁止近亲结婚。
• Their house is in close proximity to ours.他们的房子很接近我们的。

431 immediate   

adj.立即的；直接的，最接近的；紧靠的

参考例句：

• His immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
• We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。

432 prey   

n.被掠食者，牺牲者，掠食；v.捕食，掠夺，折磨

参考例句：

• Stronger animals prey on weaker ones.弱肉强食。
• The lion was hunting for its prey.狮子在寻找猎物。

433 afflicted   

使受痛苦，折磨( afflict的过去式和过去分词 )

参考例句：

• About 40% of the country's population is afflicted with the disease. 全国40%左右的人口患有这种疾病。
• A terrible restlessness that was like to hunger afflicted Martin Eden. 一阵可怕的、跟饥饿差不多的不安情绪折磨着马丁·伊登。

434 rheumatism   

n.风湿病

参考例句：

• The damp weather plays the very devil with my rheumatism.潮湿的天气加重了我的风湿病。
• The hot weather gave the old man a truce from rheumatism.热天使这位老人暂时免受风湿病之苦。

435 incision   

n．切口，切开

参考例句：

• The surgeon made a small incision in the patient's cornea.外科医生在病人的眼角膜上切开一个小口。
• The technique involves making a tiny incision in the skin.这项技术需要在皮肤上切一个小口。

436 intercepted   

拦截( intercept的过去式和过去分词 )； 截住； 截击； 拦阻

参考例句：

• Reporters intercepted him as he tried to leave the hotel. 他正要离开旅馆，记者们把他拦截住了。
• Reporters intercepted him as he tried to leave by the rear entrance. 他想从后门溜走，记者把他截住了。

437 intercept   

vt.拦截，截住，截击

参考例句：

• His letter was intercepted by the Secret Service.他的信被特工处截获了。
• Gunmen intercepted him on his way to the airport.持枪歹徒在他去机场的路上截击了他。

438 recollect   

v.回忆，想起，记起，忆起，记得

参考例句：

• He tried to recollect things and drown himself in them.他极力回想过去的事情而沉浸于回忆之中。
• She could not recollect being there.她回想不起曾经到过那儿。

439 annihilates   

n.（彻底）消灭( annihilate的名词复数 )；使无效；废止；彻底击溃v.（彻底）消灭( annihilate的第三人称单数 )；使无效；废止；彻底击溃

参考例句：

• Art has no influence upon action. It annihilates the desire to act. 艺术不能影响行为。它可以根绝干某种行动的愿望。 来自辞典例句
• That which once you rode annihilates you. 昔时的坐骑，如今却要将你毁灭。 来自互联网

440 repulsive   

adj.排斥的，使人反感的

参考例句：

• She found the idea deeply repulsive.她发现这个想法很恶心。
• The repulsive force within the nucleus is enormous.核子内部的斥力是巨大的。

441 soldered   

v.（使）焊接，焊合( solder的过去式和过去分词 )

参考例句：

• Three lead wires are soldered to the anchor terminals. 在固定接线端子上焊有三根导线。 来自辞典例句
• He soldered the broken wires together. 他将断了的电线焊接起来。 来自辞典例句

442 contractions   

n.收缩( contraction的名词复数 )；缩减；缩略词；（分娩时）子宫收缩

参考例句：

• Contractions are much more common in speech than in writing. 缩略词在口语里比在书写中常见得多。 来自《简明英汉词典》
• Muscle contractions are powered by the chemical adenosine triphosphate(ATP ). 肌肉收缩是由化学物质三磷酸腺苷(ATP)提供动力的。 来自辞典例句

443 irritability   

n.易怒

参考例句：

• It was the almost furtive restlessness and irritability that had possessed him. 那是一种一直纠缠着他的隐秘的不安和烦恼。
• All organisms have irritability while alive. 所有生物体活着时都有应激性。

444 touching   

adj.动人的，使人感伤的

参考例句：

• It was a touching sight.这是一幅动人的景象。
• His letter was touching.他的信很感人。

445 resinous   

adj.树脂的，树脂质的，树脂制的

参考例句：

• Alcohol is a solvent of resinous substances.酒精是树脂性物质的溶媒。
• He observed that the more resinous the wood, the more resistant it was to decay.他观察到木材含树脂越多，其抗腐力越强。

446 luminous   

adj.发光的，发亮的；光明的；明白易懂的；有启发的

参考例句：

• There are luminous knobs on all the doors in my house.我家所有门上都安有夜光把手。
• Most clocks and watches in this shop are in luminous paint.这家商店出售的大多数钟表都涂了发光漆。

447 agitated   

adj.被鼓动的，不安的

参考例句：

• His answers were all mixed up,so agitated was he.他是那样心神不定，回答全乱了。
• She was agitated because her train was an hour late.她乘坐的火车晚点一个小时，她十分焦虑。

448 ascertain   

vt.发现，确定，查明，弄清

参考例句：

• It's difficult to ascertain the coal deposits.煤储量很难探明。
• We must ascertain the responsibility in light of different situtations.我们必须根据不同情况判定责任。

449 devoted   

adj.忠诚的，忠实的，热心的，献身于...的

参考例句：

• He devoted his life to the educational cause of the motherland.他为祖国的教育事业贡献了一生。
• We devoted a lengthy and full discussion to this topic.我们对这个题目进行了长时间的充分讨论。

450 fins   

[医]散热片；鱼鳍；飞边；鸭掌

参考例句：

• The level of TNF-α positively correlated with BMI,FPG,HbA1C,TG,FINS and IRI,but not with SBP and DBP. TNF-α水平与BMI、FPG、HbA1C、TG、FINS和IRI呈显著正相关，与SBP、DBP无相关。 来自互联网
• Fins are a feature specific to fish. 鱼鳍是鱼类特有的特征。 来自辞典例句

451 inaccurate   

adj.错误的，不正确的，不准确的

参考例句：

• The book is both inaccurate and exaggerated.这本书不但不准确，而且夸大其词。
• She never knows the right time because her watch is inaccurate.她从来不知道准确的时间因为她的表不准。

452 reiterated   

反复地说，重申( reiterate的过去式和过去分词 )

参考例句：

• "Well, I want to know about it,'she reiterated. “嗯，我一定要知道你的休假日期，"她重复说。 来自英汉文学 - 嘉莉妹妹
• Some twenty-two years later President Polk reiterated and elaborated upon these principles. 大约二十二年之后，波尔克总统重申这些原则并且刻意阐释一番。

453 condenser   

n.冷凝器；电容器

参考例句：

• Their common principle is to use the variable capacity in a condenser.它们的普遍原理是利用电容器的可变电容。
• Steam is condensed in the condenser.蒸汽在冷凝器中凝结。

454 dense   

a.密集的，稠密的，浓密的；密度大的

参考例句：

• The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。
• The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。

455 extirpated   

v.消灭，灭绝( extirpate的过去式和过去分词 )；根除

参考例句：

• Many species have been extirpated from large areas. 许多种动物已在大片区域内灭绝。 来自辞典例句
• The brigands have never been really extirpated from the neighborhood of Rome. 罗马附近的土匪实际上从来没有真正被消灭干净过。 来自互联网

456 elucidated   

v.阐明，解释( elucidate的过去式和过去分词 )

参考例句：

• He elucidated a point of grammar. 他解释了一个语法要点。
• The scientist elucidated his theory by three simple demonstrations. 这位科学家以三个简单的实例来说明他的理论。 来自《简明英汉词典》

457 inflicted   

把…强加给，使承受，遭受( inflict的过去式和过去分词 )

参考例句：

• They inflicted a humiliating defeat on the home team. 他们使主队吃了一场很没面子的败仗。
• Zoya heroically bore the torture that the Fascists inflicted upon her. 卓娅英勇地承受法西斯匪徒加在她身上的酷刑。

458 philosophical   

adj.哲学家的，哲学上的，达观的

参考例句：

• The teacher couldn't answer the philosophical problem.老师不能解答这个哲学问题。
• She is very philosophical about her bad luck.她对自己的不幸看得很开。

459 dreaded   

adj.令人畏惧的；害怕的v.害怕，恐惧，担心( dread的过去式和过去分词)

参考例句：

• The dreaded moment had finally arrived. 可怕的时刻终于来到了。
• He dreaded having to spend Christmas in hospital. 他害怕非得在医院过圣诞节不可。 来自《用法词典》

460 lizard   

n.蜥蜴，壁虎

参考例句：

• A chameleon is a kind of lizard.变色龙是一种蜥蜴。
• The lizard darted out its tongue at the insect.蜥蜴伸出舌头去吃小昆虫。

461 lizards   

n.蜥蜴( lizard的名词复数 )

参考例句：

• Nothing lives in Pompeii except crickets and beetles and lizards. 在庞培城里除了蟋蟀、甲壳虫和蜥蜴外，没有别的生物。 来自辞典例句
• Can lizards reproduce their tails? 蜥蜴的尾巴断了以后能再生吗？ 来自辞典例句

462 vitality   

n.活力，生命力，效力

参考例句：

• He came back from his holiday bursting with vitality and good health.他度假归来之后，身强体壮，充满活力。
• He is an ambitious young man full of enthusiasm and vitality.他是个充满热情与活力的有远大抱负的青年。

463 procuring   

v.（努力）取得， （设法）获得( procure的现在分词 )；拉皮条

参考例句：

• He was accused of procuring women for his business associates. 他被指控为其生意合伙人招妓。 来自辞典例句
• She had particular pleasure, in procuring him the proper invitation. 她特别高兴为他争得这份体面的邀请。 来自辞典例句

464 preservation   

n.保护，维护，保存，保留，保持

参考例句：

• The police are responsible for the preservation of law and order.警察负责维持法律与秩序。
• The picture is in an excellent state of preservation.这幅画保存得极为完好。

465 volition   

n.意志；决意

参考例句：

• We like to think that everything we do and everything we think is a product of our volition.我们常常认为我们所做和所想的一切都出自自己的意愿。
• Makin said Mr Coombes had gone to the police of his own volition.梅金说库姆斯先生是主动去投案的。

466 antiquity   

n.古老；高龄；古物，古迹

参考例句：

• The museum contains the remains of Chinese antiquity.博物馆藏有中国古代的遗物。
• There are many legends about the heroes of antiquity.有许多关于古代英雄的传说。

467 inflames   

v.（使）变红，发怒，过热( inflame的第三人称单数 )

参考例句：

• The Captain inflames the crew with his rhetoric. 船长以他的辩才点燃了船员心中之火。 来自辞典例句
• However, the release of antibodies also inflames the bronchi and bronchioles. 然而，抗体的产生也导致了了支气管和细支气管群的发炎。 来自互联网

468 simplicity   

n.简单，简易；朴素；直率，单纯

参考例句：

• She dressed with elegant simplicity.她穿着朴素高雅。
• The beauty of this plan is its simplicity.简明扼要是这个计划的一大特点。

469 physiologists   

n.生理学者( physiologist的名词复数 )；生理学( physiology的名词复数 )；生理机能

参考例句：

• Quite unexpectedly, vertebrate physiologists and microbial biochemists had found a common ground. 出乎意外，脊椎动物生理学家和微生物生化学家找到了共同阵地。 来自辞典例句
• Physiologists are interested in the workings of the human body. 生理学家对人体的功能感兴趣。 来自辞典例句

470 nostrils   

鼻孔( nostril的名词复数 )

参考例句：

• Her nostrils flared with anger. 她气得两个鼻孔都鼓了起来。
• The horse dilated its nostrils. 马张大鼻孔。

471 rattling   

adj. 格格作响的, 活泼的, 很好的 adv. 极其, 很, 非常 动词rattle的现在分词

参考例句：

• This book is a rattling good read. 这是一本非常好的读物。
• At that same instant,a deafening explosion set the windows rattling. 正在这时，一声震耳欲聋的爆炸突然袭来，把窗玻璃震得当当地响。

472 pitcher   

n.(有嘴和柄的)大水罐；(棒球)投手

参考例句：

• He poured the milk out of the pitcher.他从大罐中倒出牛奶。
• Any pitcher is liable to crack during a tight game.任何投手在紧张的比赛中都可能会失常。

473 laden   

adj.装满了的；充满了的；负了重担的；苦恼的

参考例句：

• He is laden with heavy responsibility.他肩负重任。
• Dragging the fully laden boat across the sand dunes was no mean feat.将满载货物的船拖过沙丘是一件了不起的事。

474 lethargic   

adj.昏睡的，懒洋洋的

参考例句：

• He felt too miserable and lethargic to get dressed.他心情低落无精打采，完全没有心思穿衣整装。
• The hot weather made me feel lethargic.炎热的天气使我昏昏欲睡。

475 conversed   

v.交谈，谈话( converse的过去式 )

参考例句：

• I conversed with her on a certain problem. 我与她讨论某一问题。 来自《现代英汉综合大词典》
• She was cheerful and polite, and conversed with me pleasantly. 她十分高兴，也很客气，而且愉快地同我交谈。 来自辞典例句

476 abounds   

v.大量存在，充满，富于( abound的第三人称单数 )

参考例句：

• The place abounds with fruit, especially pears and peaches. 此地盛产水果，尤以梨桃著称。 来自《现代汉英综合大词典》
• This country abounds with fruit. 这个国家盛产水果。 来自《现代汉英综合大词典》

477 intrepidity   

n.大胆，刚勇；大胆的行为

参考例句：

• I threw myself into class discussions, attempting to dazzle him with my intelligence and intrepidity. 我全身心投入班级讨论，试图用我的智慧和冒险精神去赢得他的钦佩。 来自互联网
• Wolf totem is a novel about wolves intrepidity, initiation, strong sense of kindred and group spirit. 《狼图腾》是一部描写蒙古草原狼无畏、积极进取、强烈家族意识和团队精神的小说。 来自互联网

478 determined   

adj.坚定的；有决心的

参考例句：

• I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
• He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。

479 darted   

v.投掷，投射( dart的过去式和过去分词 )；向前冲，飞奔

参考例句：

• The lizard darted out its tongue at the insect. 蜥蜴伸出舌头去吃小昆虫。 来自《简明英汉词典》
• The old man was displeased and darted an angry look at me. 老人不高兴了，瞪了我一眼。 来自《简明英汉词典》

480 inundated   

v.淹没( inundate的过去式和过去分词 )；（洪水般地）涌来；充满；给予或交予（太多事物）使难以应付

参考例句：

• We have been inundated with offers of help. 主动援助多得使我们应接不暇。
• We have been inundated with every bit of information imaginable. 凡是想得到的各种各样的信息潮水般地向我们涌来。 来自《简明英汉词典》

481 putrefaction   

n.腐坏，腐败

参考例句：

• Putrefaction is the anaerobic degradation of proteinaceous materials.腐败作用是蛋白性物质的厌氧降解作用。
• There is a clear difference between fermentation and putrefaction.发酵与腐败有明显区别。

482 dorsal   

adj.背部的，背脊的

参考例句：

• His dorsal fin was down and his huge pectorals were spread wide.它的脊鳍朝下耷拉着，巨大的胸鳍大张着。
• The shark's dorsal fin was cut off by the fisherman.鲨鱼的背鳍被渔夫割了下来。

483 reptiles   

n.爬行动物，爬虫( reptile的名词复数 )

参考例句：

• Snakes and crocodiles are both reptiles. 蛇和鳄鱼都是爬行动物。 来自《简明英汉词典》
• Birds, reptiles and insects come from eggs. 鸟类、爬虫及昆虫是卵生的。 来自《现代汉英综合大词典》

484 reluctance   

n.厌恶，讨厌，勉强，不情愿

参考例句：

• The police released Andrew with reluctance.警方勉强把安德鲁放走了。
• He showed the greatest reluctance to make a reply.他表示很不愿意答复。

485 flexibility   

n.柔韧性，弹性，（光的）折射性，灵活性

参考例句：

• Her great strength lies in her flexibility.她的优势在于她灵活变通。
• The flexibility of a man's muscles will lessen as he becomes old.人老了肌肉的柔韧性将降低。

486 torpid   

adj.麻痹的，麻木的，迟钝的

参考例句：

• He just walked and his mind drifted slowly like a torpid stream.他只是埋头走，脑袋里思想都凝滞了，有如一汪流不动的溪水。
• Even when he was awake he was completely torpid.他醒着的时候也完全麻木不动。

487 perch   

n.栖木，高位，杆；v.栖息，就位，位于

参考例句：

• The bird took its perch.鸟停歇在栖木上。
• Little birds perch themselves on the branches.小鸟儿栖歇在树枝上。

488 reposing   

v.将（手臂等）靠在某人（某物）上( repose的现在分词 )

参考例句：

• His parents were now reposing in the local churchyard. 他的双亲现在长眠于本地教堂墓地。 来自辞典例句
• The picture shows a nude reposing on a couch. 这幅画表现的是一个人赤身体躺在长沙发上。 来自辞典例句

489 carrion   

n.腐肉

参考例句：

• A crow of bloodthirsty ants is attracted by the carrion.一群嗜血的蚂蚁被腐肉所吸引。
• Vultures usually feed on carrion or roadkill.兀鹫通常以腐肉和公路上的死伤动物为食。

490 excavations   

n.挖掘( excavation的名词复数 )；开凿；开凿的洞穴（或山路等）；（发掘出来的）古迹

参考例句：

• The excavations are open to the public. 发掘现场对公众开放。
• This year's excavations may reveal ancient artifacts. 今年的挖掘可能会发现史前古器物。 来自辞典例句

491 granites   

花岗岩，花岗石( granite的名词复数 )

参考例句：

• The rapakivi granites have a number of petrological peculiarities. 环斑花岗岩具有若干岩石学的特征。
• S-type granites should not be considered as the evidence of plume magmatism. 不能把S-型花岗岩作为地幔柱岩浆作用的证据。

492 petrified   

adj.惊呆的；目瞪口呆的v.使吓呆，使惊呆；变僵硬；使石化(petrify的过去式和过去分词)

参考例句：

• I'm petrified of snakes. 我特别怕蛇。
• The poor child was petrified with fear. 这可怜的孩子被吓呆了。 来自《简明英汉词典》

493 Founder   

n.创始者，缔造者

参考例句：

• He was extolled as the founder of their Florentine school.他被称颂为佛罗伦萨画派的鼻祖。
• According to the old tradition,Romulus was the founder of Rome.按照古老的传说，罗穆卢斯是古罗马的建国者。

494 exempt   

adj.免除的；v.使免除；n.免税者，被免除义务者

参考例句：

• These goods are exempt from customs duties.这些货物免征关税。
• He is exempt from punishment about this thing.关于此事对他已免于处分。

495 hovered   

鸟( hover的过去式和过去分词 )； 靠近（某事物）； （人）徘徊； 犹豫

参考例句：

• A hawk hovered over the hill. 一只鹰在小山的上空翱翔。
• A hawk hovered in the blue sky. 一只老鹰在蓝色的天空中翱翔。

496 navigated   

v.给（船舶、飞机等）引航，导航( navigate的过去式和过去分词 )；（从海上、空中等）横越；横渡；飞跃

参考例句：

• He navigated the plane through the clouds. 他驾驶飞机穿越云层。 来自《简明英汉词典》
• The ship was navigated by the North Star. 那只船靠北极星来导航。 来自《简明英汉词典》