CHAPTER 20

THE MOUTH OF THE RIO ANAVENI. PEAK OF UNIANA. MISSION OF ATURES. CATARACT¹, OR RAUDAL OF MAPARA. ISLETS OF SURUPAMANA AND UIRAPURI.

The river of the Orinoco, in running from south to north, is crossed by a chain of granitic⁵ mountains. Twice confined in its course, it turbulently breaks on the rocks, that form steps and transverse dykes⁶. Nothing can be grander than the aspect of this spot. Neither the fall of the Tequendama, near Santa Fe de Bogota, nor the magnificent scenes of the Cordilleras, could weaken the impression produced upon my mind by the first view of the rapids of Atures and of Maypures. When the spectator is so stationed that the eye can at once take in the long succession of cataracts⁷, the immense sheet of foam⁸ and vapours illumined by the rays of the setting sun, the whole river seems as it were suspended over its bed.

Scenes so astonishing must for ages have fixed⁹ the attention of the inhabitants of the New World. When Diego de Todaz, Alfonzo de Herrera, and the intrepid¹⁰ Raleigh, anchored at the mouth of the Orinoco, they were informed by the Indians of the Great Cataracts, which they themselves had never visited, and which they even confounded with cascades¹² farther to the east. Whatever obstacles the force of vegetation under the torrid zone may throw in the way of intercourse¹³ among nations, all that relates to the course of great rivers acquires a celebrity¹⁴ which extends to vast distances. The Orinoco, the Amazon, and the Uruguay, traverse, like inland arms of seas, in different directions, a land covered with forests, and inhabited by tribes, part of whom are cannibals. It is not yet two hundred years since civilization and the light of a more humane¹⁶ religion have pursued their way along the banks of these ancient canals traced by the hand of nature; long, however, before the introduction of agriculture, before communications for the purposes of barter¹⁷ were established among these scattered¹⁸ and often hostile tribes, the knowledge of extraordinary phenomena²⁰, of falls of water, of volcanic²¹ fires, and of snows resisting all the ardent²² heat of summer, was propagated by a thousand fortuitous circumstances. Three hundred leagues from the coast, in the centre of South America, among nations whose excursions do not extend to three days’ journey, we find an idea of the ocean, and words that denote a mass of salt water extending as far as the eye can discern. Various events, which repeatedly occur in savage²⁴ life, contribute to enlarge these conceptions. In consequence of the petty wars between neighbouring tribes, a prisoner is brought into a strange country, and treated as a poito or mero, that is to say, as a slave. After being often sold, he is dragged to new wars, escapes, and returns home; he relates what he has seen, and what he has heard from those whose tongue he has been compelled to learn. As on discovering a coast, we hear of great inland animals, so, on entering the valley of a vast river, we are surprised to find that savages²⁶, who are strangers to navigation, have acquired a knowledge of distant things. In the infant state of society, the exchange of ideas precedes, to a certain point, the exchange of productions.

The two great cataracts of the Orinoco, the celebrity of which is so far-spread and so ancient, are formed by the passage of the river across the mountains of Parima. They are called by the natives Mapara and Quittuna; but the missionaries²⁸ have substituted for these names those of Atures and Maypures, after the names of the tribes which were first assembled together in the nearest villages. On the coast of Caracas, the two Great Cataracts are denoted by the simple appellation²⁹ of the two Raudales, or rapids; a denomination³⁰ which implies that the other falls of water, even the rapids of Camiseta and of Carichana, are not considered as worthy³¹ of attention when compared with the cataracts of Atures and Maypures.

These last, situated³² between five and six degrees of north latitude³³, and a hundred leagues west of the Cordilleras of New Grenada, in the meridian³⁴ of Porto Cabello, are only twelve leagues distant from each other. It is surprising that their existence was not known to D’Anville, who, in his fine map of South America, marks the inconsiderable cascades of Marimara and San Borja, by the names of the rapids of Carichana and Tabaje. The Great Cataracts divide the Christian³⁵ establishments of Spanish Guiana into two unequal parts. Those situated between the Raudal of Atures and the mouth of the river are called the Missions of the Lower Orinoco; the Missions of the Upper Orinoco comprehend the villages between the Raudal of Maypures and the mountains of Duida. The course of the Lower Orinoco, if we estimate the sinuosities at one-third of the distance in a direct line, is two hundred and sixty nautical³⁶ leagues: the course of the Upper Orinoco, supposing its sources to be three degrees east of Duida, includes one hundred and sixty-seven leagues.

Beyond the Great Cataracts an unknown land begins. The country is partly mountainous and partly flat, receiving at once the confluents of the Amazon and the Orinoco. From the facility of its communications with the Rio Negro and Grand Para, it appears to belong still more to Brazil than to the Spanish colonies. None of the missionaries who have described the Orinoco before me, neither Father Gumilla, Gili, nor Caulin, had passed the Raudal of Maypures. We found but three Christian establishments above the Great Cataracts, along the shores of the Orinoco, in an extent of more than a hundred leagues; and these three establishments contained scarcely six or eight white persons, that is to say, persons of European race. We cannot be surprised that such a desert region should have been at all times the land of fable³⁷ and fairy visions. There, according to the statements of certain missionaries, are found races of men, some of whom have an eye in the centre of the forehead, whilst others have dogs’ heads, and mouths below their stomachs. There they pretend to have found all that the ancients relate of the Garamantes, of the Arimaspes, and of the Hyperboreans. It would be an error to suppose that these simple and often rustic³⁸ missionaries had themselves invented all these exaggerated fictions; they derived⁴⁰ them in great part from the recitals⁴² of the Indians. A fondness for narration⁴³ prevails in the Missions, as it does at sea, in the East, and in every place where the mind seeks amusement. A missionary⁴⁴, from his vocation⁴⁵, is not inclined to scepticism; he imprints⁴⁶ on his memory what the natives have so often repeated to him; and, when returned to Europe, and restored to the civilized⁴⁷ world, he finds a pleasure in creating astonishment⁴⁸ by a recital⁴¹ of facts which he thinks he has collected, and by an animated⁴⁹ description of remote things. These stories, which the Spanish colonists⁵⁰ call tales of travellers and of monks⁵¹ (cuentos de viageros y frailes), increase in improbability in proportion as you increase your distance from the forests of the Orinoco, and approach the coasts inhabited by the whites. When, at Cumana, Nueva Barcelona, and other seaports⁵³ which have frequent communication with the Missions, you betray any sign of incredulity, you are reduced to silence by these few words: The fathers have seen it, but far above the Great Cataracts (mas arriba de los Raudales).

On the 15th of April, we left the island of Panumana at four in the morning, two hours before sunrise. The sky was in great part obscured, and lightnings flashed over dense⁵⁴ clouds at more than forty degrees of elevation⁵⁵. We were surprised at not hearing thunder; but possibly this was owing to the prodigious⁵⁶ height of the storm? It appears to us, that in Europe the electric flashes without thunder, vaguely⁵⁷ called heat-lightning, are seen generally nearer the horizon. Under a cloudy sky, that sent back the radiant caloric of the soil, the heat was stifling⁵⁸; not a breath of wind agitated⁵⁹ the foliage⁶⁰ of the trees. The jaguars⁶¹, as usual, had crossed the arm of the Orinoco by which we were separated from the shore, and we heard their cries extremely near. During the night the Indians had advised us to quit our station in the open air, and retire to a deserted⁶³ hut belonging to the conucos of the inhabitants of Atures. They had taken care to barricade⁶⁴ the opening with planks⁶⁵, a precaution which seemed to us superfluous⁶⁷; but near the Cataracts tigers are very numerous, and two years before, in these very conucos of Panumana, an Indian returning to his hut, towards the close of the rainy season, found a tigress settled in it with her two young. These animals had inhabited the dwelling⁶⁸ for several months; they were dislodged from it with difficulty, and it was only after an obstinate⁶⁹ combat that the former master regained⁷⁰ possession of his dwelling. The jaguars are fond of retiring to deserted ruins, and I believe it is more prudent⁷¹ in general for a solitary⁷² traveller to encamp in the open air, between two fires, than to seek shelter in uninhabited huts.

On quitting the island of Panumana, we perceived on the western bank of the river the fires of an encampment of Guahibo savages. The missionary who accompanied us caused a few musket-shots to be fired in the air, which he said would intimidate⁷³ them, and shew that we were in a state to defend ourselves. The savages most likely had no canoes, and were not desirous of troubling us in the middle of the river. We passed at sunrise the mouth of the Rio Anaveni, which descends⁷⁵ from the eastern mountains. On its banks, now deserted, Father Olmos had established, in the time of the Jesuits, a small village of Japuins or Jaruros. The heat was so excessive that we rested a long time in a woody spot, to fish with a hook and line, and it was not without some trouble that we carried away all the fish we had caught. We did not arrive till very late at the foot of the Great Cataract, in a bay called the lower harbour (puerto de abaxo); and we followed, not without difficulty, in a dark night, the narrow path that leads to the Mission of Atures, a league distant from the river. We crossed a plain covered with large blocks of granite⁷⁶.

The little village of San Juan Nepomuceno de los Atures was founded by the Jesuit Francisco Gonzales, in 1748. In going up the river this is the last of the Christian missions that owe their origin to the order of St. Ignatius. The more southern establishments, those of Atabapo, of Cassiquiare, and of Rio Negro, were formed by the fathers of the Observance of St. Francis. The Orinoco appears to have flowed heretofore where the village of Atures now stands, and the flat savannah that surrounds the village no doubt formed part of the river. I saw to the east of the mission a succession of rocks, which seemed to have been the ancient shore of the Orinoco. In the lapse⁷⁸ of ages the river has been impelled⁷⁹ westward⁸⁰, in consequence of the accumulations of earth, which occur more frequently on the side of the eastern mountains, that are furrowed⁸¹ by torrents⁸². The cataract bears the name of Mapara,* as we have mentioned above; while the name of the village is derived from that of the nation of Atures, now believed to be extinct. I find on the maps of the seventeenth century, Island and Cataract of Athule; which is the word Atures written according to the pronunciation of the Tamanacs, who confound, like so many other people, the consonants⁸³ l and r. This mountainous region was so little known in Europe, even in the middle of the eighteenth century, that D’Anville, in the first edition of his South America, makes a branch issue from the Orinoco, near Salto de los Atures, and fall into the Amazon, to which branch he gives the name of Rio Negro.

[* I am ignorant of the etymology⁸⁴ of this word, which I believe means only a fall of water. Gili translates into Maypure a small cascade¹¹ (raudalito) by uccamatisi mapara canacapatirri. Should we not spell this word matpara? mat being a radical⁸⁵ of the Maypure tongue, and meaning bad (Hervas, Saggio N. 29). The radical par³ (para) is found among American tribes more than five hundred leagues distant from each other, the Caribs, Maypures, Brazilians, and Peruvians, in the words sea, rain, water, lake. We must not confound mapara with mapaja; this last word signifies, in Maypure and Tamanac, the papaw or melon-tree, no doubt on account of the sweetness of its fruit, for mapa means in the Maypure, as well as in the Peruvian and Omagua tongues, the honey of bees. The Tamanacs call a cascade, or raudal, in general uatapurutpe; the Maypures, uca.]

Early maps, as well as Father Gumilla’s work, place the Mission in latitude 1 degree 30 minutes. Abbe Gili gives it 3° 50′. I found, by meridian altitudes of Canopus and a of the Southern Cross, 5° 38′ 4″ for the latitude; and by the chronometer⁸⁶ 4 hours 41 minutes 17 seconds of longitude⁸⁷ west of the meridian of Paris.

We found this small Mission in the most deplorable state. It contained, even at the time of the expedition of Solano, commonly called the expedition of the boundaries, three hundred and twenty Indians. This number had diminished, at the time of our passage by the Cataracts, to forty-seven; and the missionary assured us that this diminution⁸⁸ became from year to year more sensible. He showed us, that in the space of thirty-two months only one marriage had been entered in the registers of the parish church. Two others had been contracted by uncatechised natives, and celebrated⁸⁹ before the Indian Gobernador. At the first foundation of the Mission, the Atures, Maypures, Meyepures, Abanis, and Quirupas, had been assembled together. Instead of these tribes we found only Guahibos, and a few families of the nation of Macos. The Atures have almost entirely⁹⁰ disappeared; they are no longer known, except by the tombs in the cavern⁹¹ of Ataruipe, which recall to mind the sepulchres of the Guanches at Teneriffe. We learned on the spot, that the Atures, as well as the Quaquas, and the Macos or Piaroas, belong to the great stock of the Salive nations; while the Maypures, the Abanis, the Parenis, and the Guaypunaves, are of the same race as the Cabres or Caveres, celebrated for their long wars with the Caribs. In this labyrinth⁹² of petty nations, divided from one another as the nations of Latium, Asia Minor⁹³, and Sogdiana, formerly⁹⁴ were, we can trace no general relations but by following the analogy of tongues. These are the only monuments that have reached us from the early ages of the world; the only monuments, which, not being fixed to the soil, are at once moveable and lasting⁹⁵, and have as it were traversed time and space. They owe their duration, and the extent they occupy, much less to conquering and polished nations, than to those wandering and half-savage tribes, who, fleeing before a powerful enemy, carried along with them in their extreme wretchedness only their wives, their children, and the languages of their fathers.

Between the latitudes⁹⁶ of 4 and 8°, the Orinoco not only separates the great forest of the Parime from the bare savannahs of the Apure, Meta, and Guaviare, but also forms the boundary between tribes of very different manners. To the westward, over treeless plains, wander the Guahibos, the Chiricoas, and the Guamos; nations, proud of their savage independence, whom it is difficult to fix to the soil, or habituate to regular labour. The Spanish missionaries characterise them well by the name of Indios andantes (errant or vagabond Indians), because they are perpetually moving from place to place. To the east of the Orinoco, between the neighbouring sources of the Caura, Cataniapo, and Ventuari, live the Macos, the Salives, the Curacicanas, Parecas, and Maquiritares, mild, tranquil⁹⁷ tribes, addicted⁹⁸ to agriculture, and easily subjected to the discipline of the Missions. The Indian of the plains differs from the Indian of the forests in language as well as manners and mental disposition⁹⁹; both have an idiom abounding¹⁰¹ in spirited and bold terms; but the language of the former is harsher, more concise¹⁰², and more impassioned; that of the latter, softer, more diffuse¹⁰³, and fuller of ambiguous expressions.

The Mission of Atures, like most of the Missions of the Orinoco, situated between the mouths of the Apure and the Atabapo, is composed of both the classes of tribes we have just described. We there find the Indians of the forests, and the Indians heretofore nomadic¹⁰⁴* (Indios monteros and Indios llaneros, or andantes). We visited with the missionary the huts of Macos, whom the Spaniards call Piraoas, and those of the Guahibos. The first indicated more love of order, cleanliness, and ease. The independent Macos (I do not designate them by the name of savages) have their rochelas, or fixed dwellings¹⁰⁵, two or three days’ journey east of Atures, toward the sources of the little river Cataniapo. They are very numerous. Like most of the natives of the woods, they cultivate, not maize¹⁰⁶, but cassava; and they live in great harmony with the Christian Indians of the mission. The harmony was established and wisely cultivated by the Franciscan monk⁵², Bernardo Zea. This alcalde of the reduced Macos quitted the village of Atures for a few months every year, to live in the plantations¹⁰⁷ which he possessed¹⁰⁸ in the midst of the forests near the hamlet of the independent Macos. In consequence of this peaceful intercourse, many of the Indios monteros came and established themselves some time ago in the mission. They asked eagerly for knives, fishing hooks, and those coloured glass beads¹⁰⁹, which, notwithstanding the positive prohibition¹¹¹ of the priests, were employed not as necklaces, but as ornaments¹¹² of the guayuco (perizoma). Having obtained what they sought, they returned to the woods, weary of the regulations of the mission. Epidemic¹¹³ fevers, which prevailed with violence at the entrance of the rainy season, contributed greatly to this unexpected flight. In 1799 the mortality was very considerable at Carichana, on the banks of the Meta, and at the Raudal of Atures. The Indian of the forest conceives a horror of the life of the civilized man, when, I will not say any misfortune befalls his family settled in the mission, but merely any disagreeable or unforeseen accident. Natives, who were neophytes, have been known to desert for ever the Christian establishments, on account of a great drought; as if this calamity¹¹⁵ would not have reached them equally in their plantations, had they remained in their primitive¹¹⁶ independence.

[* I employ the word nomadic as synonymous with wandering, and not in its primitive signification. The wandering nations of America (those of the indigenous¹¹⁷ tribes, it is to be understood) are never shepherds; they live by fishing and hunting, on the fruit of a few trees, the farinaceous pith of palm-trees, etc.]

The fevers which prevail during a great part of the year in the villages of Atures and Maypures, around the two Great Cataracts of the Orinoco, render these spots highly dangerous to European travellers. They are caused by violent heats, in combination with the excessive humidity of the air, bad nutriment, and, if we may believe the natives, the pestilent exhalations rising from the bare rocks of the Raudales. These fevers of the Orinoco appeared to us to resemble those which prevail every year between New Barcelona, La Guayra, and Porto Cabello, in the vicinity of the sea; and which often degenerate¹²⁰ into adynamic fevers. “I have had my little fever (mi calenturita) only eight months,” said the good missionary of the Atures, who accompanied us to the Rio Negro; speaking of it as of an habitual¹²¹ evil, easy to be borne. The fits were violent, but of short duration. He was sometimes seized with them when lying along in the boat under a shelter of branches of trees, sometimes when exposed to the burning rays of the sun on an open beach. These tertian agues are attended with great debility of the muscular system; yet we find poor ecclesiastics¹²² on the Orinoco, who endure for several years these calenturitas, or tercianas: their effects are not so fatal as those which are experienced from fevers of much shorter duration in temperate¹²³ climates.

I have just alluded¹²⁴ to the noxious¹²⁵ influence on the salubrity of the atmosphere, which is attributed by the natives, and even the missionaries, to the bare rocks. This opinion is the more worthy of attention, as it is connected with a physical phenomenon lately observed in different parts of the globe, and not yet sufficiently¹²⁶ explained. Among the cataracts, and wherever the Orinoco, between the Missions of Carichana and of Santa Barbara, periodically washes the granitic rocks, they become smooth, black, and as if coated with plumbago. The colouring matter does not penetrate¹²⁷ the stone, which is coarse-grained granite, containing a few solitary crystals of hornblende. Taking a general view of the primitive formation of Atures, we perceive, that, like the granite of Syene in Egypt, it is a granite with hornblende, and not a real syenite formation. Many of the layers are entirely destitute¹²⁹ of hornblende. The black crust is 0.3 of a line in thickness; it is found chiefly on the quartzose parts. The crystals of feldspar sometimes preserve externally their reddish-white colour, and rise above the black crust. On breaking the stone with a hammer, the inside is found to be white, and without any trace of decomposition¹³¹. These enormous stony¹³² masses appear sometimes in rhombs, sometimes under those hemispheric forms, peculiar¹³³ to granitic rocks when they separate in blocks. They give the landscape a singularly gloomy aspect; their colour being in strong contrast with that of the foam of the river which covers them, and of the vegetation by which they are surrounded. The Indians say, that the rocks are burnt (or carbonized) by the rays of the sun. We saw them not only in the bed of the Orinoco, but in some spots as far as five hundred toises from its present shore, on heights which the waters now never reach even in their greatest swellings.

What is this brownish black crust, which gives these rocks, when they have a globular form, the appearance of meteoric¹³⁶ stones? What idea can we form of the action of the water, which produces a deposit, or a change of colour, so extraordinary? We must observe, in the first place, that this phenomenon does not belong to the cataracts of the Orinoco alone, but is found in both hemispheres. At my return from Mexico in 1807, when I showed the granites¹³⁷ of Atures and Maypures to M. Roziere, who had travelled over the valley of Egypt, the coasts of the Red Sea, and Mount Sinai, this learned geologist¹³⁸ pointed¹³⁹ out to me that the primitive rocks of the little cataracts of Syene display, like the rocks of the Orinoco, a glossy¹⁴⁰ surface, of a blackish-grey, or almost leaden colour, and of which some of the fragments seem coated with tar². Recently, in the unfortunate expedition of Captain Tuckey, the English naturalists¹⁴¹ were struck with the same appearance in the yellalas (rapids and shoals) that obstruct¹⁴² the river Congo or Zaire. Dr. Koenig has placed in the British Museum, beside the syenites of the Congo, the granites of Atures, taken from a series of rocks which were presented by M. Bonpland and myself to the illustrious president of the Royal Society of London. “These fragments,” says Mr. Koenig, “alike resemble meteoric stones; in both rocks, those of the Orinoco and of Africa, the black crust is composed, according to the analysis of Mr. Children, of the oxide¹⁴³ of iron and manganese.” Some experiments made at Mexico, conjointly with Senor del Rio, led me to think that the rocks of Atures, which blacken the paper in which they are wrapped,* contain, besides oxide of manganese, carbon, and supercarburetted iron. At the Orinoco, granitic masses of forty or fifty feet thick are uniformly coated with these oxides; and, however thin these crusts may appear, they must nevertheless contain pretty considerable quantities of iron and manganese, since they occupy a space of above a league square.

[* I remarked the same phenomenon from spongy grains of platina one or two lines in length, collected at the stream-works of Taddo, in the province of Choco. Having been wrapped up in white paper during a journey of several months, they left a black stain, like that of plumbago or supercarburetted iron.]

It must be observed that all these phenomena of coloration have hitherto appeared in the torrid zone only, in rivers that have periodical overflowings, of which the habitual temperature is from twenty-four to twenty-eight centesimal degrees, and which flow, not over gritstone or calcareous rocks, but over granite, gneiss, and hornblende rocks. Quartz¹³⁰ and feldspar scarcely contain five or six thousandths of oxide of iron and of manganese; but in mica¹⁴⁴ and hornblende these oxides, and particularly that of iron, amount, according to Klaproth and Herrmann, to fifteen or twenty parts in a hundred. The hornblende contains also some carbon, like the Lydian stone and kieselschiefer. Now, if these black crusts were formed by a slow decomposition of the granitic rock, under the double influence of humidity and the tropical sun, how is it to be conceived that these oxides are spread so uniformly over the whole surface of the stony masses, and are not more abundant round a crystal of mica or hornblende than on the feldspar and milky¹⁴⁵ quartz? The ferruginous sandstones, granites, and marbles, that become cinereous and sometimes brown in damp air, have an aspect altogether different. In reflecting upon the lustre¹⁴⁶ and equal thickness of the crusts, we are rather inclined to think that this matter is deposited by the Orinoco, and that the water has penetrated¹⁴⁷ even into the clefts¹⁴⁸ of the rocks. Adopting this hypothesis, it may be asked whether the river holds the oxides suspended like sand and other earthy substances, or whether they are found in a state of chemical solution. The first supposition is less admissible, on account of the homogeneity of the crusts, which contain neither grains of sand, nor spangles of mica, mixed with the oxides. We must then recur¹⁴⁹ to the idea of a chemical solution; and this idea is no way at variance¹⁵⁰ with the phenomena daily observable in our laboratories. The waters of great rivers contain carbonic acid; and, were they even entirely pure, they would still be capable, in very great volumes, of dissolving some portions of oxide, or those metallic¹⁵¹ hydrates which are regarded as the least soluble¹⁵². The mud of the Nile, which is the sediment¹⁵³ of the matters which the river holds suspended, is destitute of manganese; but it contains, according to the analysis of M. Regnault, six parts in a hundred of oxide of iron; and its colour, at first black, changes to yellowish brown by desiccation and the contact of air. The mud consequently is not the cause of the black crusts on the rocks of Syene. Berzelius, who, at my request, examined these crusts, recognized in them, as in those of the granites of the Orinoco and River Congo, the union of iron and manganese. That celebrated chemist was of opinion that the rivers do not take up these oxides from the soil over which they flow, but that they derive³⁹ them from their subterranean¹⁵⁴ sources, and deposit them on the rocks in the manner of cementation, by the action of particular affinities¹⁵⁵, perhaps by that of the potash of the feldspar. A long residence at the cataracts of the Orinoco, the Nile, and the Rio Congo, and an examination of the circumstances attendant on this phenomenon of coloration, could alone lead to the complete solution of the problem we have discussed. Is this phenomenon independent of the nature of the rocks? I shall content myself with observing, in general, that neither the granitic masses remote from the ancient bed of the Orinoco, but exposed during the rainy season to the alternations of heat and moisture, nor the granitic rocks bathed by the brownish waters of the Rio Negro, assume the appearance of meteoric stones. The Indians say, that the rocks are black only where the waters are white. They ought, perhaps, to add, where the waters acquire great swiftness, and strike with force against the rocks of the banks. Cementation seems to explain why the crusts augment¹⁵⁶ so little in thickness.

I know not whether it be an error, but in the Missions of the Orinoco, the neighbourhood of bare rocks, and especially of the masses that have crusts of carbon, oxide of iron, and manganese, are considered injurious to health. In the torrid zone, still more than in others, the people multiply pathogenic causes at will. They are afraid to sleep in the open air, if forced to expose the face to the rays of the full moon. They also think it dangerous to sleep on granite near the river; and many examples are cited of persons, who, after having passed the night on these black and naked rocks, have awakened¹⁵⁷ in the morning with a strong paroxysm of fever. Without entirely lending faith to the assertions of the missionaries and natives, we generally avoided the laxas negras, and stretched ourselves on the beach covered with white sand, when we found no tree from which to suspend our hammocks. At Carichana, the village is intended to be destroyed, and its place changed, merely to remove it from the black rocks, or from a site where, for a space of more than ten thousand square toises, banks of bare granite form the surface. From similar motives¹⁵⁸, which must appear very chimerical¹⁵⁹ to the naturalists of Europe, the Jesuits Olmo, Forneri, and Mellis, removed a village of Jaruros to three different spots, between the Raudal of Tabaje and the Rio Anaveni. I merely state these facts as they were related to me, because we are almost wholly ignorant of the nature of the gaseous¹⁶⁰ mixtures which cause the insalubrity of the atmosphere. Can it be admitted that, under the influence of excessive heat and of constant humidity, the black crusts of the granitic rocks are capable of acting¹⁶¹ upon the ambient air, and producing miasmata with a triple basis of carbon, azote, and hydrogen? This I doubt. The granites of the Orinoco, it is true, often contain hornblende; and those who are accustomed to practical labour in mines are not ignorant that the most noxious exhalations rise from galleries wrought¹⁶² in syenitic and hornblende rocks: but in an atmosphere renewed every instant by the action of little currents of air, the effect cannot be the same as in a mine.

It is probably dangerous to sleep on the laxas negras, only because these rocks retain a very elevated temperature during the night. I have found their temperature in the day at 48°, the air in the shade being at 29.7°; during the night the thermometer on the rock indicated 36°, the air being at 26°. When the accumulation of heat in the stony masses has reached a stationary¹⁶³ degree, these masses become at the same hours nearly of the same temperature. What they have acquired more in the day they lose at night by radiation, the force of which depends on the state of the surface of the radiating body, the interior arrangement of its particles, and, above all, on the clearness of the sky, that is, on the transparency of the atmosphere and the absence of clouds. When the declination of the sun varies very little, this luminary¹⁶⁴ adds daily nearly the same quantities of heat, and the rocks are not hotter at the end than in the middle of summer. There is a certain maximum which they cannot pass, because they do not change the state of their surface, their density¹⁶⁵, or their capacity for caloric. On the shores of the Orinoco, on getting out of one’s hammock during the night, and touching¹⁶⁶ with the bare feet the rocky surface of the ground, the sensation of heat experienced is very remarkable¹⁶⁷. I observed pretty constantly, in putting the bulb of the thermometer in contact with the ledges¹⁶⁸ of bare rocks, that the laxas negras are hotter during the day than the reddish-white granites at a distance from the river; but the latter cool during the night less rapidly than the former. It may be easily conceived that the emission¹⁶⁹ and loss of caloric is more rapid in masses with black crusts than in those which abound¹⁰⁰ in laminae of silvery mica. When walking between the hours of one and three in the afternoon, at Carichana, Atures, or Maypures, among those blocks of stone destitute of vegetable mould, and piled up to great heights, one feels a sensation of suffocation¹⁷⁰, as if standing¹¹⁰ before the opening of a furnace. The winds, if ever felt in those woody regions, far from bringing coolness, appear more heated when they have passed over beds of stone, and heaps of rounded blocks of granite. This augmentation of heat adds to the insalubrity of the climate.

Among the causes of the depopulation of the Raudales, I have not reckoned the small-pox, that malady¹⁷¹ which in other parts of America makes such cruel ravages¹⁷² that the natives, seized with dismay, burn their huts, kill their children, and renounce¹⁷³ every kind of society. This scourge¹⁷⁴ is almost unknown on the banks of the Orinoco, and should it penetrate thither¹⁷⁵, it is to be hoped that its effects may be immediately counteracted¹⁷⁶ by vaccination¹⁷⁷, the blessings¹⁷⁸ of which are daily felt along the coasts of Terra Firma. The causes which depopulate the Christian settlements are, the repugnance¹⁷⁹ of the Indians for the regulations of the missions, insalubrity of climate, bad nourishment¹⁸⁰, want of care in the diseases of children, and the guilty practice of preventing pregnancy¹⁸¹ by the use of deleterious herbs. Among the barbarous people of Guiana, as well as those of the half-civilized islands of the South Sea, young wives are fearful of becoming mothers. If they have children, their offspring are exposed not only to the dangers of savage life, but also to other dangers arising from the strangest popular prejudices. When twins are born, false notions of propriety¹⁸² and family honour require that one of them should be destroyed. To bring twins into the world, say the Indians, is to be exposed to public scorn; it is to resemble rats, opossums, and the vilest¹⁸³ animals, which bring forth¹⁸⁴ a great number of young at a time. Nay¹⁸⁵, more, they affirm that two children born at the same time cannot belong to the same father. This is an axiom of physiology¹⁸⁶ among the Salives; and in every zone, and in different states of society, when the vulgar seize upon an axiom, they adhere to it with more stedfastness than the better-informed men by whom it was first hazarded. To avoid the disturbance¹⁸⁷ of conjugal¹⁸⁸ tranquillity¹⁸⁹, the old female relations of the mother take care, that when twins are born one of them shall disappear. If a new-born infant, though not a twin, have any physical deformity, the father instantly puts it to death. They will have none but robust¹⁹⁰ and well-made children, for deformities indicate some influence of the evil spirit Ioloquiamo, or the bird Tikitiki, the enemy of the human race. Sometimes children of a feeble constitution undergo the same fate. When the father is asked what is become of one of his sons, he will pretend that he has lost him by a natural death. He will disavow an action that appears to him blameable, but not criminal. “The poor boy,” he will tell you, “could not follow us; we must have waited for him every moment; he has not been seen again; he did not come to sleep where we passed the night.” Such is the candour and simplicity¹⁹¹ of manners — such the boasted happiness — of man in the state of nature! He kills his son to escape the ridicule¹⁹² of having twins, or to avoid journeying more slowly; in fact, to avoid a little inconvenience.

These acts of cruelty, I confess, are less frequent than they are believed to be; yet they occur even in the Missions, during the time when the Indians leave the village, to retire to the conucos of the neighbouring forests. It would be erroneous to attribute these actions to the state of polygamy in which the uncatechized Indians live. Polygamy no doubt diminishes the domestic happiness and internal union of families; but this practice, sanctioned by Ismaelism, does not prevent the people of the east from loving their children with tenderness. Among the Indians of the Orinoco, the father returns home only to eat, or to sleep in his hammock; he lavishes¹⁹³ no caresses¹⁹⁵ on his infants, or on his wives, whose office it is to serve him. Parental¹⁹⁶ affection begins to display itself only when the son has become strong enough to take a part in hunting, fishing, and the agricultural labours of the plantations.

While our boat was unloading, we examined closely, wherever the shore could be approached, the terrific spectacle of a great river narrowed and reduced as it were to foam. I shall endeavour to paint, not the sensations we felt, but the aspect of a spot so celebrated among the scenes of the New World. The more imposing¹⁹⁷ and majestic¹⁹⁸ the objects we describe, the more essential it becomes to seize them in their smallest details, to fix the outline of the picture we would present to the imagination of the reader, and to describe with simplicity what characterises the great and imperishable monuments of nature.

The navigation of the Orinoco from its mouth as far as the confluence¹⁹⁹ of the Anaveni, an extent of 260 leagues, is not impeded²⁰⁰. There are shoals and eddies²⁰¹ near Muitaco, in a cove¹⁵ that bears the name of the Mouth of Hell (Boca del Infierno); and there are rapids (raudalitos) near Carichana and San Borja; but in all these places the river is never entirely barred, as a channel is left by which boats can pass up and down.

In all this navigation of the Lower Orinoco travellers experience no other danger than that of the natural rafts formed by trees, which are uprooted²⁰² by the river, and swept along in its great floods. Woe²⁰³ to the canoes that during the night strike against these rafts of wood interwoven with lianas! Covered with aquatic²⁰⁴ plants, they resemble here, as in the Mississippi, floating meadows, the chinampas or floating gardens of the Mexican lakes. The Indians, when they wish to surprise a tribe of their enemies, bring together several canoes, fasten them to each other with cords, and cover them with grass and branches, to imitate this assemblage of trunks of trees, which the Orinoco sweeps along in its middle current. The Caribs are accused of having heretofore excelled in the use of this artifice²⁰⁵; at present the Spanish smugglers in the neighbourhood of Angostura have recourse to the same expedient²⁰⁶ to escape the vigilance of the custom-house officers.

After proceeding²⁰⁷ up the Orinoco beyond the Rio Anaveni, we find, between the mountains of Uniana and Sipapu, the Great Cataracts of Mapara and Quittuna, or, as they are more commonly called by the missionaries, the Raudales of Atures and Maypures. These bars, which extend from one bank to the other, present in general a similar aspect: they are composed of innumerable islands, dikes of rock, and blocks of granite piled on one another and covered with palm-trees. But, notwithstanding a uniformity of aspect, each of these cataracts preserves an individual character. The first, the Atures, is most easily passable when the waters are low. The Indians prefer crossing the second, the Maypures, at the time of great floods. Beyond the Maypures and the mouth of the Cano Cameji, the Orinoco is again unobstructed for the length of more than one hundred and sixty-seven leagues, or nearly to its source; that is to say, as far as the Raudalito of Guaharibos, east of the Cano Chiguire and the lofty mountains of Yumariquin.

Having visited the basins of the two rivers Orinoco and Amazon, I was singularly struck by the differences they display in their course of unequal extent. The falls of the Amazon, which is nearly nine hundred and eighty nautical leagues (twenty to a degree) in length, are pretty near its source in the first sixth of its total length, and five-sixths of its course are entirely free. We find the great falls of the Orinoco on a point far more unfavourable to navigation; if not at the half, at least much beyond the first third of its length. In both rivers it is neither the mountains, nor the different stages of flat lands lying over one another, whence they take their origin, that cause the cataracts; they are produced by other mountains, other ledges which, after a long and tranquil course, the rivers have to pass over, precipitating²⁰⁹ themselves from step to step.

The Amazon does not pierce its way through the principal chain of the Andes, as was affirmed at a period when it was gratuitously²¹⁰ supposed that, wherever mountains are divided into parallel chains, the intermedial or central ridge²¹¹ must be more elevated than the others. This great river rises (and this is a point of some importance to geology) eastward²¹² of the western chain, which alone in this latitude merits the denomination of the high chain of the Andes. It is formed by the junction²¹³ of the river Aguamiros with the Rio Chavinillo, which issues from the lake Llauricocha in a longitudinal valley bounded by the western and the intermedial chain of the Andes. To form an accurate idea of these hydrographical relations, it must be borne in mind that a division into three chains takes place in the colossal²¹⁴ group or knot of the mountains of Pasco and Huanuco. The western chain, which is the loftiest, and takes the name of the Cordillera Real de Nieve, directs its course (between Huary and Caxatamba, Guamachuco and Luema, Micuipampa and Guangamarca) by the Nevados of Viuda, Pelagatos, Moyopata, and Huaylillas, and by the Paramos of Guamani and Guaringa, towards the town of Loxa. The intermedial chain separates the waters of the Upper Maranon from those of the Guallaga, and over a long space reaches only the small elevation of a thousand toises; it enters the region of perpetual snow to the south of Huanuco in the Cordillera of Sasaguanca. It stretches at first northward²¹⁵ by Huacrachuco, Chachapoyas, Moyobamba, and the Paramo of Piscoguannuna; then it progressively lowers toward Peca, Copallin, and the Mission of Santiago, at the eastern extremity²¹⁶ of the province of Jaen de Bracamoros. The third, or easternmost chain, skirts the right bank of the Rio Guallaga, and loses itself in the seventh degree of latitude. So long as the Amazon flows from south to north in the longitudinal valley, between two chains of unequal height (that is, from the farms of Quivilla and Guancaybamba, where the river is crossed on wooden bridges, as far as the confluence of the Rio Chinchipe), there are neither bars, nor any obstacle whatever to the navigation of boats. The falls of water begin only where the Amazon turns toward the east, crossing the intermedial chain of the Andes, which widens considerably²¹⁸ toward the north. It meets with the first rocks of red sandstone, or ancient conglomerate²¹⁹, between Tambillo and the Pongo of Rentema (near which I measured the breadth, depth, and swiftness of the waters), and it leaves the rocks of red sandstone east of the famous strait of Manseriche, near the Pongo of Tayuchuc, where the hills rise no higher than forty or fifty toises above the level of its waters. The river does not reach the most easterly chain, which bounds the Pampas del Sacramento. From the hills of Tayuchuc as far as Grand Para, during a course of more than seven hundred and fifty leagues, the navigation is free from obstacles. It results from this rapid sketch²²⁰, that, if the Maranon had not to pass over the hilly country between Santiago and Tomependa (which belongs to the central chain of the Andes) it would be navigable from its mouth as far as Pumpo, near Piscobamba in the province of Conchucos, forty-three leagues north of its source.

We have just seen that, in the Orinoco, as in the Amazon, the great cataracts are not found near the sources of the rivers. After a tranquil course of more than one hundred and sixty leagues from the little Raudal of Guaharibos, east of Esmeralda, as far as the mountains of Sipapu, the river, augmented²²¹ by the waters of the Jao, the Ventuari, the Atabapo, and the Guaviare, suddenly changes its primitive direction from east to west, and runs from south to north: then, in crossing the land-strait* in the plains of Meta, meets the advanced buttresses²²² of the Cordillera of Parima. This obstacle causes cataracts far more considerable, and presents greater impediments to navigation, than all the Pongos of the Upper Maranon, because they are proportionally nearer to the mouth of the river. These geographical²²³ details serve to prove, in the instances of the two greatest rivers of the New World, first, that it cannot be ascertained²²⁴ in an absolute manner that, beyond a certain number of toises, or a certain height above the level of the sea, rivers are not navigable; secondly²²⁵, that the rapids are not always occasioned, as several treatises²²⁶ of general topography affirm, by the height of the first obstacles, by the first lines of ridges²¹⁷ which the waters have to surmount²²⁷ near their sources.

[* This strait, which I have several times mentioned, is formed by the Cordilleras of the Andes of New Granada, and the Cordillera of Parima.]

The most northern of the great cataracts of the Orinoco is the only one bounded on each side by lofty mountains. The left bank of the river is generally lower, but it makes part of a plane which rises again west of Atures, towards the Peak of Uniana, a pyramid nearly three thousand feet high, and placed on a wall of rock with steep slopes. The situation of this solitary peak in the plain contributes to render its aspect more imposing and majestic. Near the Mission, in the country which surrounds the cataract, the aspect of the landscape varies at every step. Within a small space we find all that is most rude and gloomy in nature, united with an open country and lovely pastoral scenery. In the physical, as in the moral world, the contrast of effects, the comparison of what is powerful and menacing with what is soft and peaceful, is a never-failing source of our pleasures and our emotions.

I shall here repeat some scattered features of a picture which I traced in another work shortly after my return to Europe.* The savannahs of Atures, covered with slender plants and grasses, are really meadows resembling those of Europe. They are never inundated²²⁸ by the rivers, and seem as if waiting to be ploughed by the hand of man. Notwithstanding their extent, these savannahs do not exhibit the monotony of our plains; they surround groups of rocks and blocks of granite piled on one another. On the very borders of these plains and this open country, glens are seen scarcely lighted by the rays of the setting sun, and hollows where the humid soil, loaded with arums, heliconias, and lianas, manifests at every step the wild fecundity²²⁹ of nature. Everywhere, just rising above the earth, appear those shelves of granite completely bare, which we saw at Carichana, and which I have already described. Where springs gush²³⁰ from the bosom²³¹ of these rocks, verrucarias, psoras, and lichens²³² are fixed on the decomposed²³³ granite, and have there accumulated mould. Little euphorbias, peperomias, and other succulent plants, have taken the place of the cryptogamous tribes; and evergreen²³⁴ shrubs²³⁵, rhexias, and purple-flowered melastomas, form verdant²³⁶ isles²³⁷ amid desert and rocky plains. The distribution of these spots, the clusters of small trees with coriaceous and shining leaves scattered in the savannahs, the limpid²³⁸ rills that dig channels across the rocks, and wind alternately through fertile places and over bare shelves of granite, all call to mind the most lovely and picturesque²³⁹ plantations and pleasure-grounds of Europe. We seem to recognise the industry of man, and the traces of cultivation²⁴⁰, amid this wild scenery.

[* Views of Nature page 153 Bohn’s edition.]

The lofty mountains that bound the horizon on every side, contribute also, by their forms and the nature of their vegetation, to give an extraordinary character to the landscape. The average height of these mountains is not more than seven or eight hundred feet above the surrounding plains. Their summits are rounded, as for the most part in granitic mountains, and covered with thick forests of the laurel-tribe. Clusters of palm-trees,* the leaves of which, curled like feathers, rise majestically²⁴¹ at an angle of seventy degrees, are dispersed²⁴² amid trees with horizontal branches; and their bare trunks, like columns of a hundred or a hundred and twenty feet high, shoot up into the air, and when seen in distinct relief against the azure²⁴⁴ vault²⁴⁵ of the sky, they resemble a forest planted upon another forest. When, as the moon was going down behind the mountains of Uniana, her reddish disc was hidden behind the pinnated foliage of the palm-trees, and again appeared in the aerial zone that separates the two forests, I thought myself transported for a few moments to the hermitage which Bernardin de Saint–Pierre has described as one of the most delicious scenes of the Isle⁴ of Bourbon, and I felt how much the aspect of the plants and their groupings resembled each other in the two worlds. In describing a small spot of land in an island of the Indian Ocean, the inimitable author of Paul and Virginia has sketched²⁴⁷ the vast picture of the landscape of the tropics. He knew how to paint nature, not because he had studied it scientifically, but because he felt it in all its harmonious²⁴⁸ analogies of forms, colours, and interior powers.

[* El cucurito.]

East of the Atures, near these rounded mountains crowned, as it were, by two superimposed forests of laurels²⁴⁹ and palms, other mountains of a very different aspect arise. Their ridge is bristled²⁵⁰ with pointed rocks, towering like pillars above the summits of the trees and shrubs. These effects are common to all granitic table-lands, at the Harz, in the metalliferous mountains of Bohemia, in Galicia, on the limit of the two Castiles, or wherever a granite of new formation appears above the ground. The rocks, which are at distances from each other, are composed of blocks piled together, or divided into regular and horizontal beds. On the summits of those situated near the Orinoco, flamingos²⁵¹, soldados,* and other fishing-birds perch²⁵², and look like men posted as sentinels. This resemblance is so striking, that the inhabitants of Angostura, soon after the foundation of their city, were one day alarmed by the sudden appearance of soldados and garzas, on a mountain towards the south. They believed they were menaced with an attack of Indios monteros (wild Indians called mountaineers); and the people were not perfectly²⁵³ tranquilized, till they saw the birds soaring in the air, and continuing their migration²⁵⁴ towards the mouths of the Orinoco.

[* The soldado (soldier) is a large species of heron.]

The fine vegetation of the mountains spreads over the plains, wherever the rock is covered with mould, We generally find that this black mould, mixed with fibrous vegetable matter, is separated from the granitic rock by a layer of white sand. The missionary assured us that verdure of perpetual freshness prevails in the vicinity of the cataracts, produced by the quantity of vapour which the river, broken into torrents and cascades for the length of three or four thousand toises, diffuses²⁵⁵ in the air.

We had not heard thunder more than once or twice at Atures, and the vegetation everywhere displayed that vigorous aspect, that brilliancy of colour, seen on the coast only at the end of the rainy season. The old trees were decorated with beautiful orchideas,* yellow bannisterias, blue-flowered bignonias, peperomias, arums, and pothoses. A single trunk displays a greater variety of vegetable forms than are contained within an extensive space of ground in our countries. Close to the parasite²⁵⁶ plants peculiar to very hot climates we observed, not without surprise, in the centre of the torrid zone, and near the level of the sea, mosses²⁵⁷ resembling in every respect those of Europe. We gathered, near the Great Cataract of Atures, that fine specimen²⁵⁸ of Grimmia* with fontinalis leaves, which has so much fixed the attention of botanists²⁵⁹. It is suspended to the branches of the loftiest trees. Of the phaenerogamous plants, those which prevail in the woody spots are the mimosa, ficus, and laurinea. This fact is the more characteristic as, according to the observations of Mr. Brown, the laurineae appear to be almost entirely wanting on the opposite continent, in the equinoctial part of Africa. Plants that love humidity adorn²⁶⁰ the scenery surrounding the cataracts. We there find in the plains groups of heliconias and other scitamineae with large and glossy leaves, bamboos, and the three palm-trees, the murichi, jagua, and vadgiai, each of which forms a separate group. The murichi, or mauritia with scaly²⁶¹ fruits, is the celebrated sago-tree of the Guaraon Indians. It has palmate leaves, and has no relation to the palm-trees with pinnate and curled leaves; to the jagua, which appears to be a species of the cocoa-tree; or to the vadgiai or cucurito, which may be assimilated to the fine species Oreodoxa. The cucurito, which is the palm most prevalent around the cataracts of the Atures and Maypures, is remarkable for its stateliness. Its leaves, or rather its palms, crown a trunk of eighty or one hundred feet high; their direction is almost perpendicular²⁶² when young, as well as at their full growth, the points only being incurvated. They look like plumes²⁶³ of the most soft and verdant green. The cucurito, the pirijao, the fruit of which resembles the apricot, the Oreodoxa regia or palma real of the island of Cuba, and the ceroxylon of the high Andes, are the most majestic of all the palm-trees we saw in the New World. As we advance toward the temperate zone, the plants of this family decrease in size and beauty. What a difference between the species we have just mentioned, and the date-tree of the East, which unfortunately has become to the landscape painters of Europe the type of a group of palm-trees!

[* Cymbidium violaceum, Habenaria angustifolia, etc.]

[* Grimmia fontinaloides. See Hooker’s Musci Exotici, 1818 tab. 2. The learned author of the Monography of the Jungermanniae (Mr. Jackson Hooker), with noble disinterestedness²⁶⁴, published at his own expense, in London, the whole collection of cryptogamous plants, brought by Bonpland and Humboldt from the equinoctial regions of America.]

It is not suprising that persons who have travelled only in the north of Africa, in Sicily, or in Spain, cannot conceive that, of all large trees, the palm is the most grand and beautiful in form. Incomplete analogies prevent Europeans from having a just idea of the aspect of the torrid zone. All the world knows, for instance, that this zone is embellished²⁶⁵ by the contrasts exhibited in the foliage of the trees, and particularly by the great number of those with pinnate leaves. The ash, the service-tree, the inga, the acacia of the United States, the gleditsia, the tamarind, the mimosa, the desmanthus, have all pinnate leaves, with foliolae more or less long, slender, tough, and shining. But can a group of ash-trees, of service-trees, or of sumach, recall the picturesque effect of tamarinds or mimosas, when the azure of the sky appears through their small, slender, and delicately pinnated leaves? These considerations are more important than they may at first seem. The forms of plants determine the physiognomy of nature; and this physiognomy influences the moral dispositions²⁶⁷ of nations. Every type comprehends species, which, while exhibiting the same general appearance, differ in the varied²⁶⁸ development of the similar organs. The palm-trees, the scitamineae, the malvaceae, the trees with pinnate leaves, do not all display the same picturesque beauties; and generally the most beautiful species of each type, in plants as in animals, belong to the equinoctial zone.

The proteaceae,* crotons, agaves, and the great tribe of the cactuses, which inhabit exclusively the New World, disappear gradually, as we ascend²⁶⁹ the Orinoco above the Apure and the Meta. It is, however, the shade and humidity, rather than the distance from the coast, which oppose the migration of the cactuses southward. We found forests of them mingled²⁷⁰ with crotons, covering a great space of arid²⁷¹ land to the east of the Andes, in the province of Bracamoros, towards the Upper Maranon. The arborescent ferns seem to fail entirely near the cataracts of the Orinoco; we found no species as far as San Fernando de Atabapo, that is, to the confluence of the Orinoco and the Guaviare.

[* Rhopalas, which characterise the vegetation of the Llanos.]

Having now examined the vicinity of the Atures, it remains²⁷² for me to speak of the rapids themselves, which occur in a part of the valley where the bed of the river, deeply ingulfed, has almost inaccessible²⁷³ banks. It was only in a very few spots that we could enter the Orinoco to bathe, between the two cataracts, in coves²⁷⁴ where the waters have eddies of little velocity²⁷⁵. Persons who have dwelt in the Alps, the Pyrenees, or even the Cordilleras, so celebrated for the fractures and the vestiges²⁷⁶ of destruction which they display at every step, can scarcely picture to themselves, from a mere¹¹⁴ narration, the state of the bed of the river. It is traversed, in an extent of more than five miles, by innumerable dikes of rock, forming so many natural dams, so many barriers resembling those of the Dnieper, which the ancients designated by the name of phragmoi. The space between the rocky dikes of the Orinoco is filled with islands of different dimensions; some hilly, divided into several peaks, and two or three hundred toises in length, others small, low, and like mere shoals. These islands divide the river into a number of torrents, which boil up as they break against the rocks. The jaguas and cucuritos with plumy leaves, with which all the islands are covered, seem like groves²⁷⁷ of palm-trees rising from the foamy²⁷⁸ surface of the waters. The Indians, whose task it is to pass the boats empty over the raudales, distinguish every shelf, and every rock, by a particular name. On entering from the south you find first the Leap of the Toucan²⁷⁹ (Salto del Piapoco); and between the islands of Avaguri and Javariveni is the Raudal of Javariveni, where, on our return from Rio Negro, we passed some hours amid the rapids, waiting for our boat. A great part of the river appeared dry. Blocks of granite are heaped together, as in the moraines which the glaciers²⁸⁰ of Switzerland drive before them. The river is ingulfed in caverns²⁸¹; and in one of these caverns we heard the water roll at once over our heads and beneath our feet. The Orinoco seems divided into a multitude of arms or torrents, each of which seeks to force a passage through the rocks. We were struck with the little water to be seen in the bed of the river, the frequency of subterraneous falls, and the tumult²⁸² of the waters breaking on the rocks in foam.

Cuncta fremunt undis; ac multo murmure montis Spumeus invictis canescit fluctibus amnis.*

[* Lucan, Pharsalia lib 10 v 132.]

Having passed the Raudal of Javariveni (I name here only the principal falls) we come to the Raudal of Canucari, formed by a ledge¹⁹ of rocks uniting the islands of Surupamana and Uirapuri. When the dikes, or natural dams, are only two or three feet high, the Indians venture to descend⁷⁴ them in boats. In going up the river, they swim on before, and if, after many vain efforts, they succeed in fixing a rope to one of the points of rock that crown the dike²⁰⁸, they then, by means of that rope, draw the bark to the top of the raudal. The bark, during this arduous²⁸³ task, often fills with water; at other times it is stove against the rocks, and the Indians, their bodies bruised²⁸⁴ and bleeding, extricate²⁸⁵ themselves with difficulty from the whirlpools, and reach, by swimming, the nearest island. When the steps or rocky barriers are very high, and entirely bar the river, light boats are carried on shore, and with the help of branches of trees placed under them to serve as rollers, they are drawn²⁸⁶ as far as the place where the river again becomes navigable. This operation is seldom necessary when the water is high. We cannot speak of the cataracts of the Orinoco without recalling to mind the manner heretofore employed for descending²⁸⁷ the cataracts of the Nile, of which Seneca has left us a description probably more poetical²⁸⁸ than accurate. I shall cite the passage, which traces with fidelity²⁸⁹ what may be seen every day at Atures, Maypures, and in some pongos of the Amazon. “Two men embark²⁹⁰ in a small boat; one steers²⁹¹, and the other empties it as it fills with water. Long buffeted²⁹² by the rapids, the whirlpools, and the contrary currents, they pass through the narrowest channels, avoid the shoals, and rush down the whole river, guiding the course of the boat in its accelerated fall.” (Nat. Quaest. lib 4 cap 2 edit. Elzev. tome 2 page 609.)

In hydrographic descriptions of countries, the vague names of cataracts, cascades, falls, and rapids,* denoting those tumultuous movements of water which arise from very different circumstances, are generally confounded with one another. Sometimes a whole river precipitating itself from a great height, and by one single fall, renders navigation impossible. Such is the majestic fall of the Rio Tequendama, which I have represented in my Views of the Cordilleras; such are the falls of Niagara and of the Rhine, much less remarkable for their elevation, than for the mass of water they contain. Sometimes stony dikes of small height succeed each other at great distances, and form distinct falls; such are the cachoeiras of the Rio Negro and the Rio Madeira, the saltos of the Rio Cauca, and the greater part of the pongos that are found in the Upper Maranon, from the confluence of the Chinchipe to the village of San Borja. The highest and most formidable of these pongos, which are descended²⁹³ on rafts, that of Mayasi, is however only three feet in height. Sometimes small rocky dikes are so near each other that they form for several miles an uninterrupted succession of cascades and whirlpools (chorros and remolinos); these are properly what are called rapids (raudales). Such are the yellalas, or rapids of the River Zaire,* or Congo, which Captain Tuckey has recently made known to us; the rapids of the Orange River in Africa, above Pella; and the falls of the Missouri, which are four leagues in length, where the river issues from the Rocky Mountains. Such also are the cataracts of Atures and Maypures; the only cataracts which, situated in the equinoctial region of the New World, are adorned²⁹⁴ with the noble growth of palm-trees. At all seasons they exhibit the aspect of cascades, and present the greatest obstacles to the navigation of the Orinoco, while the rapids of the Ohio and of Upper Egypt are scarcely visible at the period of floods. A solitary cataract, like Niagara, or the cascade of Terni, affords a grand but single picture, varying only as the observer changes his place. Rapids, on the contrary, especially when adorned with large trees, embellish²⁶⁶ a landscape during a length of several leagues. Sometimes the tumultuous movement of the waters is caused only by extraordinary contractions²⁹⁵ of the beds of the rivers. Such is the angostura of Carare, in the river Magdalena, a strait that impedes²⁹⁷ communication between Santa Fe de Bogota and the coast of Carthagena; and such is the pongo of Manseriche, in the Upper Maranon.

[* The corresponding terms in use among the people of South America, are saltos, chorros, pongos, cachoeiras, and raudales.]

[* Voyage to explore the River Zaire, 1818, pages 152, 327, 340. What the inhabitants of Upper Egypt and Nubia call chellal in the Nile, is called yellala in the River Congo. This analogy between words signifying rapids is remarkable, on account of the enormous distance of the yellalas of the Congo from the chellal and djenadel of the Nile. Did the word chellal penetrate with the Moors²⁹⁸ into the west of Africa? If, with Burckhardt, we consider the origin of this word as Arabic (Travels in Nubia, 1819), it must be derived from the root challa, to disperse²⁴³, which forms chelil, water falling through a narrow channel.]

The Orinoco, the Rio Negro, and almost all the confluents of the Amazon and the Maranon, have falls or rapids, either because they cross the mountains where they take rise, or because they meet other mountains in their course. If the Amazon, from the pongo of Manseriche (or, to speak with more precision, from the pongo of Tayuchuc) as far as its mouth, a space of more than seven hundred and fifty leagues, exhibit no tumultuous movement of the waters, the river owes this advantage to the uniform direction of its course. It flows from west to east in a vast plain, forming a longitudinal valley between the mountains of Parima and the great mass of the mountains of Brazil.

I was surprised to find by actual measurement that the rapids of the Orinoco, the roar of which is heard at the distance of more than a league, and which are so eminently²⁹⁹ picturesque from the varied appearance of the waters, the palm-trees and the rocks, have not probably, on their whole length, a height of more than twenty-eight feet perpendicular. In reflecting on this, we find that it is a great deal for rapids, while it would be very little for a single cataract. The Yellalas of the Rio Congo, in the contracted part of the river from Banza Noki as far as Banza Inga, furnish, between the upper and lower levels, a much more considerable difference; but Mr. Barrow observes, that among the great number of these rapids there is one fall, which alone is thirty feet high. On the other hand, the famous pongos of the river Amazon, so dangerous to go up, the falls of Rentema, of Escurrebragas, and of Mayasi, are but a few feet in perpendicular height. Those who are engaged in hydraulic³⁰⁰ works know the effect that a bar of eighteen or twenty inches’ height produces in a great river. The whirling and tumultuous movement of the water does not depend solely³⁰¹ on the greatness of partial falls; what determines the force and impetuosity is the nearness of these falls, the steepness of the rocky ledges, the returning sheets of water which strike against and surmount each other, the form of the islands and shoals, the direction of the counter-currents, and the contraction²⁹⁶ and sinuosity of the channels through which the waters force a passage between two adjacent levels. In two rivers equally large, that of which the falls have least height may sometimes present the greatest dangers and the most impetuous movements.

It is probable that the river Orinoco loses part of its waters in the cataracts, not only by increased evaporation³⁰², caused by the dispersion of minute drops in the atmosphere, but still more by filtrations into the subterraneous cavities. These losses, however, are not very perceptible when we compare the mass of waters entering into the raudal with that which issues out near the mouth of the Rio Anaveni. It was by a similar comparison that the existence of subterraneous cavities in the yellalas or rapids of the river Congo was discovered. The pongo of Manseriche, which ought rather to be called a strait than a fall, ingulfs, in a manner not yet sufficiently explored, a part of the waters and all the floating wood of the Upper Maranon.

The spectator, seated on the bank of the Orinoco, with his eyes fixed on those rocky dikes, is naturally led to inquire whether, in the lapse of ages, the falls change their form or height. I am not much inclined to believe in such effects of the shock of water against blocks of granite, and in the erosion of siliceous matter. The holes narrowed toward the bottom, the funnels³⁰³ that are discovered in the raudales, as well as near so many other cascades in Europe, are owing only to the friction³⁰⁴ of the sand, and the movement of quartz pebbles³⁰⁵. We saw many such, whirled perpetually by the current at the bottom of the funnels, and contributing to enlarge them in every direction. The pongos of the river Amazon are easily destroyed, because the rocky dikes are not granite, but a conglomerate, or red sandstone with large fragments. A part of the pongo of Rentama was broken down eighty years ago, and the course of the waters being interrupted by a new bar, the bed of the river remained dry for some hours, to the great astonishment of the inhabitants of the village of Payaya, seven leagues below the pongo. The Indians of Atures assert (and in this their testimony³⁰⁶ is contrary to the opinion of Caulin) that the rocks of the raudal preserve the same aspect; but that the partial torrents into which the great river divides itself as it passes through the heaped blocks of granite, change their direction, and carry sometimes more, sometimes less water towards one or the other bank; but the causes of these changes may be very remote from the cataracts, for in the rivers that spread life over the surface of the globe, as in the arteries³⁰⁷ by which it is diffused³⁰⁸ through organized bodies, all the movements are propagated to great distances. Oscillations, that at first seem partial, react on the whole liquid mass contained in the trunk as well as in its numerous ramifications³⁰⁹.

Some of the Missionaries in their writings have alleged³¹⁰ that the inhabitants of Atures and Maypures have been struck with deafness by the noise of the Great Cataracts, but this is untrue. When the noise is heard in the plain that surrounds the mission, at the distance of more than a league, you seem to be near a coast skirted by reefs and breakers. The noise is three times as loud by night as by day, and gives an inexpressible charm to these solitary scenes. What can be the cause of this increased intensity³¹¹ of sound, in a desert where nothing seems to interrupt the silence of nature? The velocity of the propagation of sound, far from augmenting³¹², decreases with the lowering of the temperature. The intensity diminishes in air agitated by a wind which is contrary to the direction of the sound; it diminishes also by dilatation of the air, and is weaker in the higher than in the lower regions of the atmosphere, where the number of particles of air in motion is greater in the same radius³¹³. The intensity is the same in dry air, and in air mingled with vapours; but it is feebler in carbonic acid gas than in mixtures of azote and oxygen. From these facts, which are all we know with any certainty, it is difficult to explain a phenomenon observed near every cascade in Europe, and which, long before our arrival in the village of Atures, had struck the missionary and the Indians.

It may be thought that, even in places not inhabited by man, the hum of insects, the song of birds, the rustling³¹⁴ of leaves agitated by the feeblest winds, occasion during the day a confused noise, which we perceive the less because it is uniform, and constantly strikes the ear. Now this noise, however slightly perceptible it may be, may diminish the intensity of a louder noise; and this diminution may cease if during the calm of the night the song of birds, the hum of insects, and the action of the wind upon the leaves be interrupted. But this reasoning, even admitting its justness, can scarcely be applied³¹⁵ to the forests of the Orinoco, where the air is constantly filled by an innumerable quantity of mosquitos, where the hum of insects is much louder by night than by day, and where the breeze, if ever it be felt, blows only after sunset.

I rather think that the presence of the sun acts upon the propagation and intensity of sound by the obstacles met in currents of air of different density, and by the partial undulations of the atmosphere arising from the unequal heating of different parts of the soil. In calm air, whether dry or mingled with vesicular vapours equally distributed, sound-waves are propagated without difficulty. But when the air is crossed in every direction by small currents of hotter air, the sonorous³¹⁶ undulation is divided into two undulations where the density of the medium changes abruptly³¹⁸; partial echoes are formed that weaken the sound, because one of the streams comes back upon itself; and those divisions of undulations take place of which M. Poisson has developed the theory with great sagacity.* It is not therefore the movement of the particles of air from below to above in the ascending³¹⁹ current, or the small oblique³²⁰ currents that we consider as opposing by a shock the propagation of the sonorous undulations. A shock given to the surface of a liquid will form circles around the centre of percussion³²¹, even when the liquid is agitated. Several kinds of undulations may cross each other in water, as in air, without being disturbed in their propagation: little movements may, as it were, ride over each other, and the real cause of the less intensity of sound during the day appears to be the interpretation³²² of homogeneity in the elastic³²³ medium. During the day there is a sudden interruption of density wherever small streamlets of air of a high temperature rise over parts of the soil unequally heated. The sonorous undulations are divided, as the rays of light are refracted and form the mirage³²⁴ wherever strata³²⁵ of air of unequal density are contiguous. The propagation of sound is altered when a stratum³²⁶ of hydrogen gas is made to rise in a tube closed at one end above a stratum of atmospheric³²⁷ air; and M. Biot has well explained, by the interposition of bubbles of carbonic acid gas, why a glass filled with champagne³²⁸ is not sonorous so long as that gas is evolved, and passing through the strata of the liquid.

[* Annales de Chimie tome 7 page 293.]

In support of these ideas, I might almost rest on the authority of an ancient philosopher, whom the moderns do not esteem³²⁹ in proportion to his merits, though the most distinguished³³⁰ zoologists³³¹ have long rendered ample justice to the sagacity of his observations. “Why,” says Aristotle in his curious book of Problems, “why is sound better heard during the night? Because there is more calmness on account of the absence of caloric (of the hottest).* This absence renders every thing calmer, for the sun is the principle of all movement.” Aristotle had no doubt a vague presentiment³³² of the cause of the phenomenon; but he attributes to the motion of the atmosphere, and the shock of the particles of air, that which seems to be rather owing to abrupt³¹⁷ changes of density in the contiguous strata of air.

[* I have placed in a parenthesis³³³, a literal version of the term employed by Aristotle, to express in reality what we now term the matter of heat. Theodore of Gaza, in his Latin translation, expresses in the shape of a doubt what Aristotle positively³³⁴ asserts. I may here remark, that, notwithstanding the imperfect state of science among the ancients, the works of the Stagirite contain more ingenious observations than those of many later philosophers. It is in vain we look in Aristoxenes (De Musica), in Theophylactus Simocatta (De Quaestionibus physicis), or in the 5th Book of the Quest. Nat. of Seneca, for an explanation of the nocturnal augmentation of sound.]

On the 16th of April, towards evening, we received tidings that in less than six hours our boat had passed the rapids, and had arrived in good condition in a cove called el Puerto de arriba, or the Port of the Expedition. We were shown in the little church of Atures some remains of the ancient wealth of the Jesuits. A silver lamp of considerable weight lay on the ground half-buried in the sand. Such an object, it is true, would nowhere tempt³³⁵ the cupidity³³⁶ of a savage; yet I may here remark, to the honor of the natives of the Orinoco, that they are not addicted to stealing, like the less savage tribes of the islands in the Pacific. The former have a great respect for property; they do not even attempt to steal provision, hooks, or hatchets³³⁷. At Maypures and Atures, locks on doors are unknown: they will be introduced only when whites and men of mixed race establish themselves in the missions.

The Indians of Atures are mild and moderate, and accustomed, from the effects of their idleness, to the greatest privations. Formerly, being excited to labour by the Jesuits, they did not want for food. The fathers cultivated maize, French beans (frijoles), and other European vegetables; they even planted sweet oranges and tamarinds round the villages; and they possessed twenty or thirty thousand head of cows and horses, in the savannahs of Atures and Carichana. They had at their service a great number of slaves and servants (peones), to tend their herds¹¹⁹. Nothing is now cultivated but a little cassava, and a few plantains. Such however is the fertility of the soil, that at Atures I counted on a single branch of a musa one hundred and eight fruits, four or five of which would almost have sufficed for a man’s daily food. The culture of maize is entirely neglected, and the horses and cows have entirely disappeared. Near the raudal, a part of the village still bears the name of Passo del ganado (ford of the cattle), while the descendants of those very Indians whom the Jesuits had assembled in a mission, speak of horned cattle as of animals of a race now lost. In going up the Orinoco, toward San Carlos del Rio Negro, we saw the last cow at Carichana. The Fathers of the Observance, who now govern these vast countries, did not immediately succeed the Jesuits. During an interregnum of eighteen years, the missions were visited only from time to time, and by Capuchin monks. The agents of the secular³³⁸ government, under the title of Royal Commissioners³³⁹, managed the hatos or farms of the Jesuits with culpable³⁴⁰ negligence³⁴¹. They killed the cattle for the sake of selling the hides. Many heifers were devoured³⁴³ by the jaguars, and a great number perished in consequence of wounds made by the bats of the raudales, which, though smaller, are far bolder than the bats of the Llanos. At the time of the expedition of the boundaries, horses from Encaramada, Carichana, and Atures, were conveyed as far as San Jose de Maravitanos, where, on the banks of the Rio Negro, the Portuguese³⁴⁴ could only procure³⁴⁵ them, after a long passage, and of a very inferior quality, by the rivers Amazon and Grand Para. Since the year 1795, the cattle of the Jesuits have entirely disappeared. There now remain as monuments of the ancient cultivation of these countries, and the active industry of the first missionaries, only a few trunks of the orange and tamarind, in the savannahs, surrounded by wild trees.

The tigers, or jaguars, which are less dangerous for the cattle than the bats, come into the village at Atures, and devour³⁴² the swine of the poor Indians. The missionary related to us a striking instance of the familiarity of these animals, usually so ferocious³⁴⁶. Some months before our arrival, a jaguar⁶², which was thought to be young, though of a large size, had wounded a child in playing with him. The facts of this case, which were verified to us on the spot, are not without interest in the history of the manners of animals. Two Indian children, a boy and a girl, about eight and nine years of age, were seated on the grass near the village of Atures, in the middle of a savannah, which we several times traversed. At two o’clock in the afternoon, a jaguar issued from the forest, and approached the children, bounding around them; sometimes he hid himself in the high grass, sometimes he sprang forward, his back bent³⁴⁷, his head hung down, in the manner of our cats. The little boy, ignorant of his danger, seemed to be sensible of it only when the jaguar with one of his paws gave him some blows on the head. These blows, at first slight, became ruder and ruder; the claws of the jaguar wounded the child, and the blood flowed freely. The little girl then took a branch of a tree, struck the animal, and it fled from her. The Indians ran up at the cries of the children, and saw the jaguar, which then bounded off without making the least show of resistance.

The little boy was brought to us, who appeared lively and intelligent. The claw of the jaguar had torn away the skin from the lower part of the forehead, and there was a second scar at the top of the head. This was a singular fit of playfulness in an animal which, though not difficult to be tamed in our menageries, nevertheless shows itself always wild and ferocious in its natural state. If we admit that, being sure of its prey³⁴⁸, it played with the little Indian as our cats play with birds whose wings have been clipped, how shall we explain the patience of a jaguar of large size, which finds itself attacked by a girl? If the jaguar were not pressed by hunger, why did it approach the children at all? There is something mysterious in the affections and hatreds³⁴⁹ of animals. We have known lions kill three or four dogs that were put into their den²³, and instantly caress¹⁹⁴ a fifth, which, less timid, took the king of animals by the mane. These are instincts of which we know not the secret.

We have mentioned that domestic pigs are attacked by the jaguars. There are in these countries, besides the common swine of European race, several species of peccaries, or pigs with lumbar glands³⁵⁰, two of which only are known to the naturalists of Europe. The Indians call the little peccary (Dicotiles torquatus, Cuv.), in the Maypure tongue, chacharo; while they give the name of apida to a species of pig which they say has no pouch³⁵¹, is larger, and of a dark brown colour, with the belly³⁵² and lower jaw³⁵³ white. The chacharo, reared in the houses, becomes tame like our sheep and goats. It reminds us, by the gentleness of its manners, of the curious analogies which anatomists have observed between the peccaries and the ruminating³⁵⁴ animals. The apida, which is domesticated³⁵⁵ like our swine in Europe, wanders in large herds composed of several hundreds. The presence of these herds is announced from afar, not only by their hoarse³⁵⁶ gruntings, but above all by the impetuosity with which they break down the shrubs in their way. M. Bonpland, in an herborizing excursion, warned by his Indian guide to hide himself behind the trunk of a tree, saw a number of these peccaries (cochinos or puercos del monte) pass close by him. The herd¹¹⁸ marched in a close body, the males proceeding first; and each sow was accompanied by her young. The flesh of the chacharo is flabby, and not very agreeable; it affords, however, a plentiful³⁵⁷ nourishment to the natives, who kill these animals with small lances tied to cords. We were assured at Atures, that the tiger dreads³⁵⁹ being surrounded in the forests by these herds of wild pigs; and that, to avoid being stifled³⁶⁰, he tries to save himself by climbing up a tree. Is this a hunter’s tale, or a fact that has really been observed? In several parts of America the hunters believe in the existence of a javali, or native boar with tusks³⁶¹ curved outwardly. I never saw one, but this animal is mentioned in the works of the Spanish missionaries, a source too much neglected by zoologists; for amidst much incorrectness and extravagance, they contain many curious local observations.

Among the monkeys which we saw at the mission of the Atures, we found one new species, of the tribe of sais and sajous, which the Creoles vulgarly call machis. It is the Guvapavi with grey hair and a bluish face. It has the orbits of the eyes and the forehead as white as snow, a peculiarity³⁶² which at first sight distinguishes it from the Simia capucina, the Simia apella, the Simia trepida, and the other weeping monkeys hitherto so confusedly described. This little animal is as gentle as it is ugly. A monkey of this species, which was kept in the courtyard of the missionary, would frequently mount on the back of a pig, and in this manner traverse the savannahs. We have also seen it upon the back of a large cat, which had been brought up with it in Father Zea’s house.

It was among the cataracts that we began to hear of the hairy man of the woods, called salvaje, that carries off women, constructs huts, and sometimes eats human flesh. The Tamanacs call it achi, and the Maypures vasitri, or great devil. The natives and the missionaries have no doubt of the existence of this man-shaped monkey, of which they entertain a singular dread³⁵⁸. Father Gili gravely relates the history of a lady in the town of San Carlos, in the Llanos of Venezuela, who much praised the gentle character and attentions of the man of the woods. She is stated to have lived several years with one in great domestic harmony, and only requested some hunters to take her back, because she and her children (a little hairy also) were weary of living far from the church and the sacraments. The same author, notwithstanding his credulity, acknowledges that he never knew an Indian who asserted positively that he had seen the salvaje with his own eyes. This wild legend, which the missionaries, the European planters, and the negroes of Africa, have no doubt embellished with many features taken from the description of the manners of the orang-otang,* the gibbon, the jocko or chimpanzee, and the pongo, followed us, during five years, from the northern to the southern hemisphere. We were everywhere blamed, in the most cultivated class of society, for being the only persons to doubt the existence of the great anthropomorphous monkey of America. There are certain regions where this belief is particularly prevalent among the people; such are the banks of the Upper Orinoco, the valley of Upar near the lake of Maracaybo, the mountains of Santa Martha and of Merida, the provinces of Quixos, and the banks of the Amazon near Tomependa. In all these places, so distant one from the other, it is asserted that the salvaje is easily recognized by the traces of its feet, the toes of which are turned backward. But if there exist a monkey of a large size in the New Continent, how has it happened that for three centuries no man worthy of belief has been able to procure the skin of one? Several hypotheses present themselves to the mind, in order to explain the source of so ancient an error or belief. Has the famous capuchin monkey of Esmeralda (Simia chiropotes), with its long canine³⁶³ teeth, and physiognomy much more like man’s* than that of the orang-otang, given rise to the fable of the salvaje? It is not so large indeed as the coaita (Simia paniscus); but when seen at the top of a tree, and the head only visible, it might easily be taken for a human being. It may be also (and this opinion appears to me the most probable) that the man of the woods was one of those large bears, the footsteps of which resemble those of a man, and which are believed in every country to attack women. The animal killed in my time at the foot of the mountains of Merida, and sent, by the name of salvaje, to Colonel Ungaro, the governor of the province of Varinas, was in fact a bear with black and smooth fur. Our fellow-traveller, Don Nicolas Soto, had examined it closely. Did the strange idea of a plantigrade animal, the toes of which are placed as if it walked backward, take its origin from the habit of the real savages of the woods, the Indians of the weakest and most timid tribes, of deceiving their enemies, when they enter a forest, or cross a sandy shore, by covering the traces of their feet with sand, or walking backward?

[* Simia satyrus. We must not believe, notwithstanding the assertions of almost all zoological writers, that the word orang-otang is applied exclusively in the Malay language to the Simia satyrus of Borneo. This expression, on the contrary, means any very large monkey, that resembles man in figure. Marsden’s History of Sumatra 3rd edition page 117. Modern zoologists have arbitrarily appropriated provincial³⁶⁴ names to certain species; and by continuing to prefer these names, strangely disfigured in their orthography³⁶⁵, to the Latin systematic³⁶⁶ names, the confusion of the nomenclature has been increased.]

[* The whole of the features — the expression of the physiognomy; but not the forehead.]

Though I have expressed my doubts of the existence of an unknown species of large monkey in a continent which appears entirely destitute of quadrumanous animals of the family of the orangs, cynocephali, mandrils, and pongos; yet it should be remembered that almost all matters of popular belief, even those most absurd in appearance, rest on real facts, but facts ill observed. In treating them with disdain³⁶⁷, the traces of a discovery may often be lost, in natural philosophy as well as in zoology³⁶⁸. We will not then admit, with a Spanish author, that the fable of the man of the woods was invented by the artifice of Indian women, who pretended to have been carried off, when they had been long absent unknown to their husbands. Travellers who may hereafter visit the missions of the Orinoco will do well to follow up our researches on the salvaje or great devil of the woods; and examine whether it be some unknown species of bear, or some very rare monkey analogous³⁶⁹ to the Simia chiropotes, or Simia satanas, which may have given rise to such singular tales.

After having spent two days near the cataract of Atures, we were not sorry when our boat was reladen, and we were enabled to leave a spot where the temperature of the air is generally by day twenty-nine degrees, and by night twenty-six degrees, of the centigrade thermometer. This temperature seemed to us to be still much more elevated, from the feeling of heat which we experienced. The want of concordance between the instruments and the sensations must be attributed to the continual irritation³⁷⁰ of the skin excited by the mosquitos. An atmosphere filled with venomous insects always appears to be more heated than it is in reality. We were horribly tormented³⁷³ in the day by mosquitos and the jejen, a small venomous fly (simulium), and at night by the zancudos, a large species of gnat⁷⁷, dreaded³⁷⁴ even by the natives. Our hands began to swell¹³⁵ considerably, and this swelling¹³⁴ increased daily till our arrival on the banks of the Temi. The means that are employed to escape from these little plagues are very extraordinary. The good missionary Bernardo Zea, who passed his life tormented by mosquitos, had constructed near the church, on a scaffolding of trunks of palm-trees, a small apartment, in which we breathed more freely. To this we went up in the evening, by means of a ladder, to dry our plants and write our journal. The missionary had justly observed, that the insects abounded³⁷⁵ more particularly in the lowest strata of the atmosphere, that which reaches from the ground to the height of twelve or fifteen feet. At Maypures the Indians quit the village at night, to go and sleep on the little islets in the midst of the cataracts. There they enjoy some rest; the mosquitoes appearing to shun³⁷⁶ air loaded with vapours. We found everywhere fewer in the middle of the river than near its banks; and thus less is suffered in descending the Orinoco than in going up in a boat.

Persons who have not navigated³⁷⁷ the great rivers of equinoctial America, for instance, the Orinoco and the Magdalena, can scarcely conceive how, at every instant, without intermission, you may be tormented by insects flying in the air; and how the multitude of these little animals may render vast regions almost uninhabitable. Whatever fortitude³⁷⁸ be exercised to endure pain without complaint, whatever interest may be felt in the objects of scientific research, it is impossible not to be constantly disturbed by the mosquitos, zancudos, jejens, and tempraneros, that cover the face and hands, pierce the clothes with their long needle-formed suckers, and getting into the mouth and nostrils³⁷⁹, occasion coughing and sneezing whenever any attempt is made to speak in the open air. In the missions of the Orinoco, in the villages on the banks of the river, surrounded by immense forests, the plaga de las moscas, or the plague of the mosquitos, affords an inexhaustible subject of conversation. When two persons meet in the morning, the first questions they address to each other are: How did you find the zancudos during the night? How are we today for the mosquitos?* These questions remind us of a Chinese form of politeness, which indicates the ancient state of the country where it took birth. Salutations were made heretofore in the Celestial³⁸⁰ empire in the following words, vou-to-hou, Have you been incommoded in the night by the serpents?

[* Que le han parecido los zancudos de noche? Como stamos hoy de mosquitos?]

The geographical distribution of the insects of the family of tipulae presents very remarkable phenomena. It does not appear to depend solely on heat of climate, excess of humidity, or the thickness of forests, but on local circumstances that are difficult to characterise. It may be observed that the plague of mosquitos and zancudos is not so general in the torrid zone as is commonly believed. On the table-lands elevated more than four hundred toises above the level of the ocean, in the very dry plains remote from the beds of great rivers (for instance, at Cumana and Calabozo), there are not sensibly more gnats³⁸¹ than in the most populous³⁸² parts of Europe. They are perceived to augment enormously at Nueva Barcelona, and more to the west, on the coast that extends towards Cape²⁵ Codera. Between the little harbour of Higuerote and the mouth of the Rio Unare, the wretched inhabitants are accustomed to stretch themselves on the ground, and pass the night buried in the sand three or four inches deep, leaving out the head only, which they cover with a handkerchief. You suffer from the sting of insects, but in a manner easy to bear, in descending the Orinoco from Cabruta towards Angostura, and in going up from Cabruta towards Uruana, between the latitudes of 7 and 8°. But beyond the mouth of the Rio Arauca, after having passed the strait of Baraguan, the scene suddenly changes. From this spot the traveller may bid farewell to repose³⁸³. If he have any poetical remembrance of Dante, he may easily imagine he has entered the citta dolente, and he will seem to read on the granite rocks of Baraguan these lines of the Inferno³⁸⁴:

Noi sem venuti al luogo, ov’ i’ t’ho detto Che tu vedrai le genti dolorose.

The lower strata of air, from the surface of the ground to the height of fifteen or twenty feet, are absolutely filled with venomous insects. If in an obscure spot, for instance in the grottos³⁸⁵ of the cataracts formed by superincumbent blocks of granite, you direct your eyes toward the opening enlightened by the sun, you see clouds of mosquitos more or less thick. At the mission of San Borja, the suffering from mosquitos is greater than at Carichana; but in the Raudales, at Atures, and above all at Maypures, this suffering may be said to attain³⁸⁶ its maximum. I doubt whether there be a country upon earth where man is exposed to more cruel torments³⁸⁷ in the rainy season. Having passed the fifth degree of latitude, you are somewhat less stung; but on the Upper Orinoco the stings are more painful, because the heat and the absolute want of wind render the air more burning and more irritating in its contact with the skin.

“How comfortable must people be in the moon!” said a Salive Indian to Father Gumilla; “she looks so beautiful and so clear, that she must be free from mosquitos.” These words, which denote the infancy³⁸⁸ of a people, are very remarkable. The satellite of the earth appears to all savage nations the abode³⁸⁹ of the blessed, the country of abundance. The Esquimaux, who counts among his riches a plank⁶⁶ or trunk of a tree, thrown by the currents on a coast destitute of vegetation, sees in the moon plains covered with forests; the Indian of the forests of Orinoco there beholds³⁹⁰ open savannahs, where the inhabitants are never stung by mosquitos.

After proceeding further to the south, where the system of yellowish-brown waters commences,* on the banks of the Atabapo, the Tuni, the Tuamini, and the Rio Negro, we enjoyed an unexpected repose. These rivers, like the Orinoco, cross thick forests, but the tipulary insects, as well as the crocodiles, shun the proximity³⁹¹ of the black waters. Possibly these waters, which are a little colder, and chemically different from the white waters, are adverse³⁹² to the larvae³⁹³ of tipulary insects and gnats, which may be considered as real aquatic animals. Some small rivers, the colour of which is deep blue, or yellowish-brown (as the Toparo, the Mataveni, and the Zama), are exceptions to the almost general rule of the absence of mosquitos over the black waters. These three rivers swarm³⁹⁴ with them; and the Indians themselves fixed our attention on the problematic causes of this phenomenon. In going down the Rio Negro, we breathed freely at Maroa, Daripe, and San Carlos, villages situated on the boundaries of Brazil. But this improvement of our situation was of short continuance; our sufferings recommenced as soon as we entered the Cassiquiare. At Esmeralda, at the eastern extremity of the Upper Orinoco, where ends the known world of the Spaniards, the clouds of mosquitos are almost as thick as at the Great Cataracts. At Mandavaca we found an old missionary, who told us with an air of sadness, that he had had his twenty years of mosquitos in America*. He desired us to look at his legs, that we might be able to tell one day, beyond sea (por alla), what the poor monks suffer in the forests of Cassiquiare. Every sting leaving a small darkish brown point, his legs were so speckled that it was difficult to recognize the whiteness of his skin through the spots of coagulated blood. If the insects of the genus Simulium abound in the Cassiquiare, which has white waters, the culices or zancudos are so much the more rare; you scarcely find any there; while on the rivers of black waters, in the Atabapo and the Rio, there are generally some zancudos and no mosquitos.

[* Generally called black waters, aguas negras.]

[* “Yo tengo mis veinte anos de mosquitos.”]

I have just shown, from my own observations, how much the geographical distribution of venomous insects varies in this labyrinth of rivers with white and black waters. It were to be wished that a learned entomologist could study on the spot the specific differences of these noxious insects,* which in the torrid zone, in spite of their minute size, act an important point in the economy of nature. What appeared to us very remarkable, and is a fact known to all the missionaries, is, that the different species do not associate together, and that at different hours of the day you are stung by distinct species. Every time that the scene changes, and, to use the simple expression of the missionaries, other insects mount guard, you have a few minutes, often a quarter of an hour, of repose. The insects that disappear have not their places instantly supplied by their successors. From half-past-six in the morning till five in the afternoon, the air is filled with mosquitos; which have not, as some travellers have stated, the form of our gnats,* but that of a small fly. They are simuliums of the family Nemocera of the system of Latreille. Their sting is as painful as that of the genus Stomox. It leaves a little reddish brown spot, which is extravased and coagulated blood, where their proboscis³⁹⁶ has pierced the skin. An hour before sunset a species of small gnats, called tempraneros,* because they appear also at sunrise, take the place of the mosquitos. Their presence scarcely lasts an hour and a half; they disappear between six and seven in the evening, or, as they say here, after the Angelus (a la oracion). After a few minutes’ repose, you feel yourself stung by zancudos, another species of gnat with very long legs. The zancudo, the proboscis of which contains a sharp-pointed sucker, causes the most acute pain, and a swelling that remains several weeks. Its hum resembles that of the European gnat, but is louder and more prolonged. The Indians pretend to distinguish the zancudos and the tempraneros by their song; the latter are real twilight³⁹⁷ insects, while the zancudos are most frequently nocturnal insects, and disappear toward sunrise.

[* The mosquito bovo or tenbiguai; the melero, which always settles upon the eyes; the tempranero, or putchiki; the jejen; the gnat rivau, the great zancudo, or matchaki; the cafafi, etc.]

[* Culex pipiens. This difference between mosquito (little fly, simulium) and zancudo (gnat, culex) exists in all the Spanish colonies. The word zancudo signifies long legs, qui tiene las zancas largas. The mosquitos of the Orinoco are the moustiques; the zancudos are the maringouins of French travellers.]

[* Which appear at an early hour (temprano). Some persons say, that the zancudo is the same as the tempranero, which returns at night, after hiding itself for some time. I have doubts of this identity of the species; the pain caused by the sting of the two insects appeared to me different.]

In our way from Carthagena to Santa Fe de Bogota, we observed that between Mompox and Honda, in the valley of the Rio Magdalena, the zancudos darkened the air from eight in the evening till midnight; that towards midnight they diminished in number, and were hidden for three or four hours; and lastly that they returned in crowds, about four in the morning. What is the cause of these alternations of motion and rest? Are these animals fatigued³⁹⁸ by long flight? It is rare on the Orinoco to see real gnats by day; while at the Rio Magdalena we were stung night and day, except from noon till about two o’clock. The zancudos of the two rivers are no doubt of different species.

We have seen that the insects of the tropics everywhere follow a certain standard in the periods at which they alternately arrive and disappear. At fixed and invariable hours, in the same season, and the same latitude, the air is peopled with new inhabitants, and in a zone where the barometer³⁹⁹ becomes a clock,* where everything proceeds with such admirable regularity⁴⁰⁰, we might guess blindfold⁴⁰¹ the hour of the day or night, by the hum of the insects, and by their stings, the pain of which differs according to the nature of the poison that each species deposits in the wound.

[* By the extreme regularity of the horary variations of the atmospheric pressure.]

At a period when the geography of animals and of plants had not yet been studied, the analogous species of different climates were often confounded. It was believed that the pines and ranunculuses, the stags, the rats, and the tipulary insects of the north of Europe, were to be found in Japan, on the ridge of the Andes, and at the Straits of Magellan. Justly celebrated naturalists have thought that the zancudo of the torrid zone was the gnat of our marshes⁴⁰², become more vigorous, more voracious⁴⁰³, and more noxious, under the influence of a burning climate. This is a very erroneous opinion. I carefully examined and described upon the spot those zancudos, the stings of which are most tormenting⁴⁰⁵. In the rivers Magdalena and Guayaquil alone there are five distinct species.

The culices of South America have generally the wings, corslet, and legs of an azure colour, ringed and variegated⁴⁰⁶ with a mixture of spots of metallic lustre. Here as in Europe, the males, which are distinguished by their feathered antennae⁴⁰⁷, are extremely rare; you are seldom stung except by females. The preponderance of this sex explains the immense increase of the species, each female laying several hundred eggs. In going up one of the great rivers of America, it is observed, that the appearance of a new species of culex denotes the proximity of a new stream flowing in. I shall mention an instance of this curious phenomenon. The Culex lineatus, which belongs to the Cano Tamalamec, is only perceived in the valley of the Rio Grande de la Magdalena, at a league north of the junction of the two rivers; it goes up, but scarcely ever descends the Rio Grande. It is thus, that, on a principal vein³⁹⁵, the appearance of a new substance in the gangue indicates to the miner the neighbourhood of a secondary vein that joins the first.

On recapitulating⁴⁰⁸ the observations here recorded, we see, that within the tropics, the mosquitos and zancudos do not rise on the slope of the Cordilleras* toward the temperate region, where the mean heat is below 19 or 20°; and that, with few exceptions, they shun the black waters, and dry and unwooded spots.* The atmosphere swarms⁴⁰⁹ with them much more in the Upper than in the Lower Orinoco, because in the former the river is surrounded with thick forests on its banks, and the skirts of the forests are not separated from the river by a barren and extensive beach. The mosquitos diminish on the New Continent with the diminution of the water, and the destruction of the woods; but the effects of these changes are as slow as the progress of cultivation. The towns of Angostura, Nueva Barcelona, and Mompox, where from the want of police, the streets, the great squares, and the interior of court-yards are overgrown with brushwood, are sadly celebrated for the abundance of zancudos.

[* The culex pipiens of Europe does not, like the culex of the torrid zone, shun mountainous places. Giesecke suffered from these insects in Greenland, at Disco, in latitude 70°. They are found in Lapland in summer, at three or four hundred toises high, and at a temperature of 11 or 12°.]

[* Trifling⁴¹⁰ modifications⁴¹¹ in the waters, or in the air, often appear to prevent the development of the mosquitos. Mr. Bowdich remarks that there are none at Coomassie, in the kingdom of the Ashantees, though the town is surrounded by marshes, and though the thermometer keeps up between seventeen and twenty-eight centesimal degrees, day and night.]

People born in the country, whether whites, mulattoes, negroes, or Indians, all suffer from the sting of these insects. But as cold does not render the north of Europe uninhabitable, so the mosquitos do not prevent men from dwelling in the countries where they abound, provided that, by their situation and government, they afford resources for agriculture and industry. The inhabitants pass their lives in complaining of the insufferable torment³⁷² of the mosquitos, yet, notwithstanding these continual complaints, they seek, and even with a sort of predilection⁴¹², the commercial towns of Mompox, Santa Marta, and Rio de la Hacha. Such is the force of habit in evils which we suffer every hour of the day, that the three missions of San Borja, Atures, and Esmeralda, where, to make use of an hyperbolical expression of the monks, there are more mosquitos than air,* would no doubt become flourishing towns, if the Orinoco afforded planters the same advantages for the exchange of produce, as the Ohio and the Lower Mississippi.

[* Mas moscas que aire.]

It is a curious fact, that the whites born in the torrid zone may walk barefoot with impunity⁴¹³, in the same apartment where a European recently landed is exposed to the attack of the nigua or chegoe (Pulex penetrans). This animal, almost invisible to the eye, gets under the toe-nails, and there acquires the size of a small pea, by the quick increase of its eggs, which are placed in a bag under the belly of the insect. The nigua therefore distinguishes what the most delicate chemical analysis could not distinguish, the cellular⁴¹⁴ membrane⁴¹⁵ and blood of a European from those of a creole white. The mosquitos, on the contrary, attack equally the natives and the Europeans; but the effects of the sting are different in the two races of men. The same venomous liquid, deposited in the skin of a copper-coloured man of Indian race, and in that of a white man newly landed, causes no swelling in the former, while in the latter it produces hard blisters⁴¹⁶, greatly inflamed⁴¹⁷, and painful for several days; so different is the action on the epidermis⁴¹⁸, according to the degree of irritability⁴¹⁹ of the organs in different races and different individuals!

I shall here recite several facts, which prove that the Indians, and in general all the people of colour, at the moment of being stung, suffer like the whites, although perhaps with less intensity of pain. In the day-time, and even when labouring at the oar¹²⁸, the natives, in order to chase the insects, are continually giving one another smart slaps with the palm of the hand. They even strike themselves and their comrades mechanically during their sleep. The violence of their blows reminds one of the Persian tale of the bear that tried to kill with his paw the insects on the forehead of his sleeping master. Near Maypures we saw some young Indians seated in a circle and rubbing cruelly each others’ backs with the bark of trees dried at the fire. Indian women were occupied, with a degree of patience of which the copper-coloured race alone are capable, in extracting, by means of a sharp bone, the little mass of coagulated blood that forms the centre of every sting, and gives the skin a speckled appearance. One of the most barbarous nations of the Orinoco, that of the Ottomacs, is acquainted with the use of mosquito-curtains (mosquiteros) woven from the fibres of the moriche palm-tree. At Higuerote, on the coast of Caracas, the copper-coloured people sleep buried in the sand. In the villages of the Rio Magdalena the Indians often invited us to stretch ourselves as they did on ox-skins, near the church, in the middle of the plaza⁴²⁰ grande, where they had assembled all the cows in the neighbourhood. The proximity of cattle gives some repose to man. The Indians of the Upper Orinoco and the Cassiquiare, seeing that M. Bonpland could not prepare his herbal, owing to the continual torment of the mosquitos, invited him to enter their ovens (hornitos). Thus they call little chambers⁴²¹, without doors or windows, into which they creep horizontally through a very low opening. When they have driven away the insects by means of a fire of wet brushwood, which emits a great deal of smoke, they close the opening of the oven. The absence of the mosquitos is purchased dearly enough by the excessive heat of the stagnated⁴²² air, and the smoke of a torch of copal, which lights the oven during your stay in it. M. Bonpland, with courage and patience well worthy of praise, dried hundreds of plants, shut up in these hornitos of the Indians.

These precautions of the Indians sufficiently prove that, notwithstanding the different organization of the epidermis, the copper-coloured man, like the white man, suffers from the stings of insects; but the former seems to feel less pain, and the sting is not followed by those swellings which, during several weeks, heighten the irritability of the skin, and throw persons of a delicate constitution into that feverish⁴²³ state which always accompanies eruptive maladies. Whites born in equinoctial America, and Europeans who have long sojourned in the Missions, on the borders of forests and great rivers, suffer much more than the Indians, but infinitely⁴²⁴ less than Europeans newly arrived. It is not, therefore, as some travellers assert, the thickness of the skin that renders the sting more or less painful at the moment when it is received; nor is it owing to the particular organization of the integuments, that in the Indians the sting is followed by less of swelling and inflammatory symptoms; it is on the nervous irritability of the epidermis that the acuteness and duration of the pain depend. This irritability is augmented by very warm clothing, by the use of alcoholic⁴²⁵ liquors, by the habit of scratching the wounds, and lastly, (and this physiological⁴²⁶ observation is the result of my own experience,) that of baths repeated at too short intervals⁴²⁷. In places where the absence of crocodiles permits people to enter a river, M. Bonpland and myself observed that the immoderate use of baths, while it moderated the pain of old stings of zancudos, rendered us more sensible to new stings. By bathing more than twice a day, the skin is brought into a state of nervous irritability, of which no idea can be formed in Europe. It would seem as if all feeling were carried toward the integuments.

As the mosquitos and gnats pass two-thirds of their lives in the water, it is not surprising that these noxious insects become less numerous in proportion as you recede²⁷ from the banks of the great rivers which intersect the forests. They seem to prefer the spots where their metamorphosis took place, and where they go to deposit their eggs. In fact the wild Indians (Indios monteros) experience the greater difficulty in accustoming⁴²⁸ themselves to the life of the missions, as they suffer in the Christian establishments a torment which they scarcely know in their own inland dwellings. The natives at Maypures, Atures, and Esmeralda, have been seen fleeing to the woods, or, as they say, al monte, solely from the dread of mosquitos. Unfortunately, all the Missions of the Orinoco have been established too near the banks of the river. At Esmeralda the inhabitants assured us that if the village were situated in one of the five plains surrounding the high mountains of Duida and Maraguaca, they should breathe freely, and enjoy some repose. The great cloud of mosquitos (la nube de moscas) to use the expression of the monks, is suspended only over the Orinoco and its tributary⁴²⁹ streams, and is dissipated in proportion as you remove from the rivers. We should form a very inaccurate⁴³⁰ idea of Guiana and Brazil, were we to judge of that great forest four hundred leagues wide, lying between the sources of the Madeira and the Lower Orinoco, from the valleys of the rivers by which it is crossed.

I learned that the little insects of the family of the nemocerae migrate from time to time like the alouate monkeys, which live in society. In certain spots, at the commencement of the rainy season, different species appear, the sting of which has not yet been felt. We were informed at the Rio Magdalena, that at Simiti no other culex than the jejen was formerly known; and it was then possible to enjoy a tranquil night’s rest, for the jejen is not a nocturnal insect. Since the year 1801, the great blue-winged gnat (Culex cyanopterus) has appeared in such numbers, that the poor inhabitants of Simiti know not how to procure an undisturbed sleep. In the marshy⁴³¹ channels (esteros) of the isle of Baru, near Carthagena, is found a little white fly called cafafi. It is scarcely visible to the naked eye, and causes very painful swellings. The toldos or cottons used for mosquito-curtains, are wetted to prevent the cafafi penetrating⁴³² through the interstices left by the crossing threads. This insect, happily rare elsewhere, goes up in January, by the channel (dique) of Mahates, as far as Morales. When we went to this village in the month of May, we found there cimuliae and zancudos, but no jejens.

The insects most troublesome at Orinoco, or as the Creoles say, the most ferocious (los mas feroces), are those of the great cataracts of Esmeralda and Mandavaca. On the Rio Magdalena the Culex cyanopterus is dreaded, particularly at Mompox, Chiloa, and Tamalameca. At these places this insect is larger and stronger, and its legs blacker. It is difficult to avoid smiling on hearing the missionaries dispute about the size and voracity⁴³³ of the mosquitos at different parts of the same river. In a region the inhabitants of which are ignorant of all that is passing in the rest of the world, this is the favourite subject of conversation. “How I pity your situation!” said the missionary of the Raudales to the missionary of Cassiquiare, at our departure; “you are alone, like me, in this country of tigers and monkeys; with you fish is still more rare, and the heat more violent; but as for my mosquitos (mias moscas) I can boast that with one of mine I would beat three of yours.”

This voracity of insects in certain spots, the fury with which they attack man,* the activity of the venom³⁷¹ varying in the same species, are very remarkable facts; which find their analogy, however, in the classes of large animals. The crocodile of Angostura pursues men, while at Nueva Barcelona you may bathe tranquilly⁴³⁴ in the Rio Neveri amidst these carnivorous reptiles⁴³⁵. The jaguars of Maturin, Cumanacoa, and the isthmus⁴³⁶ of Panama, are timid in comparison of those of the Upper Orinoco. The Indians well know that the monkeys of some valleys are easily tamed, while others of the same species, caught elsewhere, will rather die of hunger than submit to slavery.*

[* This voracity, this appetite for blood, seems surprising in little insects, that live on vegetable juices, and in a country almost entirely uninhabited. “What would these animals eat, if we did not pass this way?” say the Creoles, in going through countries where there are only crocodiles covered with a scaly skin, and hairy monkeys.]

[* I might have added the example of the scorpion⁴³⁷ of Cumana, which it is very difficult to distinguish from that of the island of Trinidad, Jamaica, Carthagena, and Guayaquil; yet the former is not more to be feared than the Scorpio europaeus (of the south of France), while the latter produces consequences far more alarming than the Scorpio occitanus (of Spain and Barbary). At Carthagena and Guayaquil, the sting of the scorpion (alacran) instantly causes the loss of speech. Sometimes a singular torpor⁴³⁸ of the tongue is observed for fifteen or sixteen hours. The patient, when stung in the legs, stammers⁴³⁹ as if he had been struck with apoplexy.]

The common people in America have framed systems respecting the salubrity of climates and pathological phenomena, as well as the learned of Europe; and their systems, like ours, are diametrically opposed to each other, according to the provinces into which the New Continent is divided. At the Rio Magdalena the frequency of mosquitos is regarded as troublesome, but salutary. These animals, say the inhabitants, give us slight bleedings, and preserve us, in a country excessively hot, from the scarlet⁴⁴⁰ fever, and other inflammatory diseases. But at the Orinoco, the banks of which are very insalubrious, the sick blame the mosquitos for all their sufferings. It is unnecessary to refute the fallacy of the popular belief that the action of the mosquitos is salutary by its local bleedings. In Europe the inhabitants of marshy countries are not ignorant that the insects irritate the epidermis, and stimulate⁴⁴¹ its functions by the venom which they deposit in the wounds they make. Far from diminishing the inflammatory state of the skin, the stings increase it.

The frequency of gnats and mosquitos characterises unhealthy climates only so far as the development and multiplication⁴⁴² of these insects depend on the same causes that give rise to miasmata. These noxious animals love a fertile soil covered with plants, stagnant⁴⁴³ waters, and a humid air never agitated by the wind; they prefer to an open country those shades, that softened⁴⁴⁴ day, that tempered degree of light, heat, and moisture which, while it favours the action of chemical affinities, accelerates the putrefaction⁴⁴⁵ of organised substances. May not the mosquitos themselves increase the insalubrity of the atmosphere? When we reflect that to the height of three or four toises a cubic foot of air is often peopled by a million of winged insects,* which contain a caustic⁴⁴⁶ and venomous liquid; when we recollect⁴⁴⁷ that several species of culex are 1.8 lines long from the head to the extremity of the corslet (without reckoning the legs); lastly, when we consider that in this swarm of mosquitos and gnats, diffused in the atmosphere like smoke, there is a great number of dead insects raised by the force of the ascending air, or by that of the lateral⁴⁴⁸ currents which are caused by the unequal heating of the soil, we are led to inquire whether the presence of so many animal substances in the air must not occasion particular miasmata. I think that these substances act on the atmosphere differently from sand and dust; but it will be prudent to affirm nothing positively on this subject. Chemistry has not yet unveiled the numerous mysteries of the insalubrity of the air; it has only taught us that we are ignorant of many things with which a few years ago we believed we were acquainted.

[* It is sufficient to mention, that the cubic foot contains 2,985,984 cubic lines.]

Daily experience appears in a certain degree to prove the fact that at the Orinoco, Cassiquiare, Rio Caura, and wherever the air is very unhealthy, the sting of the mosquito augments⁴⁴⁹ the disposition of the organs to receive the impression of miasmata. When you are exposed day and night, during whole months, to the torment of insects, the continual irritation of the skin causes febrile commotions⁴⁵⁰; and, from the sympathy existing between the dermoid and the gastric⁴⁵¹ systems, injures the functions of the stomach. Digestion⁴⁵² first becomes difficult, the cutaneous inflammation excites profuse⁴⁵³ perspirations, an unquenchable thirst succeeds, and, in persons of a feeble constitution, increasing impatience⁴⁵⁵ is succeeded by depression of mind, during which all the pathogenic causes act with increased violence. It is neither the dangers of navigating⁴⁵⁶ in small boats, the savage Indians, nor the serpents, crocodiles, or jaguars, that make Spaniards dread a voyage on the Orinoco; it is, as they say with simplicity, “el sudar y las moscas,” (the perspiration⁴⁵⁴ and the flies). We have reason to believe that mankind, as they change the surface of the soil, will succeed in altering by degrees the constitution of the atmosphere. The insects will diminish when the old trees of the forest have disappeared; when, in those countries now desert, the rivers are seen bordered with cottages, and the plains covered with pastures and harvests.

Whoever has lived long in countries infested⁴⁵⁷ by mosquitos will be convinced, as we were, that there exists no remedy for the torment of these insects. The Indians, covered with anoto, bolar earth, or turtle oil, are not protected from their attacks. It is doubtful whether the painting even relieves: it certainly does not prevent the evil. Europeans, recently arrived at the Orinoco, the Rio Magdalena, the river Guayaquil, or Rio Chagres (I mention the four rivers where the insects are most to be dreaded) at first obtain some relief by covering their faces and hands, but they soon feel it difficult to endure the heat, are weary of being condemned⁴⁵⁸ to complete inactivity, and finish with leaving the face and hands uncovered. Persons who would renounce all kind of occupation during the navigation of these rivers, might bring some particular garment from Europe in the form of a bag, under which they could remain covered, opening it only every half-hour. This bag should be distended⁴⁶⁰ by whalebone hoops⁴⁶¹, for a close mask and gloves would be perfectly insupportable. Sleeping on the ground, on skins, or in hammocks, we could not make use of mosquito-curtains (toldos) while on the Orinoco. The toldo is useful only where it forms a tent so well closed around the bed that there is not the smallest opening by which a gnat can pass. This is difficult to accomplish; and often when you succeed (for instance, in going up the Rio Magdalena, where you travel with some degree of convenience), you are forced, in order to avoid being suffocated⁴⁶² by the heat, to come out from beneath your toldo, and walk about in the open air. A feeble wind, smoke, and powerful smells, scarcely afford any relief in places where the insects are very numerous and very voracious. It is erroneously affirmed that these little animals fly from the peculiar smell emitted by the crocodile. We were fear fully⁴⁰⁴ stung at Bataillez, in the road from Carthagena to Honda, while we were dissecting⁴⁶³ a crocodile eleven feet long, the smell of which infested all the surrounding atmosphere. The Indians much commend the fumes⁴⁶⁴ of burnt cow-dung. When the wind is very strong, and accompanied by rain, the mosquitos disappear for some time: they sting most cruelly at the approach of a storm, particularly when the electric explosions are not followed by heavy showers.

Anything waved about the head and the hands contributes to chase away the insects. “The more you stir yourself, the less you will be stung,” say the missionaries. The zancudo makes a buzzing before it settles; but, when it has assumed confidence, when it has once begun to fix its sucker, and distend⁴⁵⁹ itself, you may touch its wings without its being frightened. It remains the whole time with its two hind²⁴⁶ legs raised; and, if left to suck to satiety⁴⁶⁵, no swelling takes place, and no pain is left behind. We often repeated this experiment on ourselves in the valley of the Rio Magdalena. It may be asked whether the insect deposits the stimulating⁴⁶⁶ liquid only at the moment of its flight, when it is driven away, or whether it draws the liquid up again when left to suck undisturbed. I incline to this latter opinion; for on quietly presenting the back of my hand to the Culex cyanopterus, I observed that the pain, though violent in the beginning, diminishes in proportion as the insect continues to suck, and ceases altogether when it voluntarily flies away. I also wounded my skin with a pin, and rubbed the pricks⁴⁶⁷ with bruised mosquitos, and no swelling ensued. The irritating liquid, in which chemists have not yet recognized any acid properties, is contained, as in the ant and other hymenopterous insects, in particular glands; and is probably too much diluted⁴⁶⁸, and consequently too much weakened, if the skin be rubbed with the whole of the bruised insect.

I have thrown together at the close of this chapter all we learned during the course of our travels on phenomena which naturalists have hitherto singularly neglected, though they exercise a great influence on the welfare of the inhabitants, the salubrity of the climate, and the establishment of new colonies on the rivers of equinoctial America. I might justly have incurred⁴⁶⁹ the charge of having treated this subject too much in detail, were it not connected with general physiological views. Our imagination is struck only by what is great; but the lover of natural philosophy should reflect equally on little things. We have just seen that winged insects, collected in society, and concealing⁴⁷⁰ in their sucker a liquid that irritates the skin, are capable of rendering⁴⁷¹ vast countries almost uninhabitable. Other insects equally small, the termites⁴⁷² (comejen),* create obstacles to the progress of civilization, in several hot and temperate parts of the equinoctial zone, that are difficult to be surmounted⁴⁷³. They devour paper, pasteboard, and parchment with frightful⁴⁷⁴ rapidity, utterly⁴⁷⁵ destroying records and libraries. Whole provinces of Spanish America do not possess one written document that dates a hundred years back. What improvement can the civilization of nations acquire if nothing link the present with the past; if the depositories of human knowledge must be repeatedly renewed; if the records of genius and reason cannot be transmitted to posterity⁴⁷⁶?

[* Literally⁴⁷⁷, the eaters or the devourers.]

In proportion as you ascend the table-land of the Andes these evils disappear. Man breathes a fresh and pure air. Insects no more disturb the labours of the day or the slumbers⁴⁷⁸ of the night. Documents can be collected in archives without our having to complain of the voracity of the termites. Mosquitos are no longer feared at a height of two hundred toises; and the termites, still very frequent at three hundred toises of elevation,* become very rare at Mexico, Santa Fe de Bogota, and Quito. In these great capitals, situated on the back of the Cordilleras, we find libraries and archives, augmented from day to day by the enlightened zeal⁴⁷⁹ of the inhabitants. These circumstances, combined with others, insure a moral preponderance to the Alpine⁴⁸⁰ region over the lower regions of the torrid zone. If we admit, agreeably to the ancient traditions collected in both the old and new worlds, that at the time of the catastrophe⁴⁸¹ which preceded the renewal⁴⁸² of our species, man descended from the mountains into the plains, we may admit, with still greater confidence, that these mountains, the cradle of so many various nations, will for ever remain the centre of human civilization in the torrid zone. From these fertile and temperate table-lands, from these islets scattered in the aerial ocean, knowledge and the blessings of social institutions will be spread over those vast forests extending along the foot of the Andes, now inhabited only by savage tribes whom the very wealth of nature has retained in indolence and barbarism.

[* There are some at Popayan (height 910 toises; mean temperature 18.7°), but they are species that gnaw⁴⁸³ wood only.]

1 cataract   

n.大瀑布，奔流，洪水，白内障

参考例句：

• He is an elderly gentleman who had had a cataract operation.他是一位曾经动过白内障手术的老人。
• The way is blocked by the tall cataract.高悬的大瀑布挡住了去路。

2 tar   

n.柏油，焦油；vt.涂或浇柏油/焦油于

参考例句：

• The roof was covered with tar.屋顶涂抹了一层沥青。
• We use tar to make roads.我们用沥青铺路。

3 par   

n.标准，票面价值，平均数量；adj.票面的，平常的，标准的

参考例句：

• Sales of nylon have been below par in recent years.近年来尼龙织品的销售额一直不及以往。
• I don't think his ability is on a par with yours.我认为他的能力不能与你的能力相媲美。

4 isle   

n.小岛，岛

参考例句：

• He is from the Isle of Man in the Irish Sea.他来自爱尔兰海的马恩岛。
• The boat left for the paradise isle of Bali.小船驶向天堂一般的巴厘岛。

5 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。

6 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》

7 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

8 foam   

v./n.泡沫，起泡沫

参考例句：

• The glass of beer was mostly foam.这杯啤酒大部分是泡沫。
• The surface of the water is full of foam.水面都是泡沫。

9 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。

10 intrepid   

adj.无畏的，刚毅的

参考例句：

• He is not really satisfied with his intrepid action.他没有真正满意他的无畏行动。
• John's intrepid personality made him a good choice for team leader.约翰勇敢的个性适合作领导工作。

11 cascade   

n.小瀑布，喷流；层叠；vi.成瀑布落下

参考例句：

• She watched the magnificent waterfall cascade down the mountainside.她看着壮观的瀑布从山坡上倾泻而下。
• Her hair fell over her shoulders in a cascade of curls.她的卷发像瀑布一样垂在肩上。

12 cascades   

倾泻( cascade的名词复数 )； 小瀑布（尤指一连串瀑布中的一支）； 瀑布状物； 倾泻（或涌出）的东西

参考例句：

• The river fell in a series of cascades down towards the lake. 河形成阶梯状瀑布泻入湖中。
• Turning into the sun, he began the long, winding drive through the Cascades. 现在他朝着太阳驶去，开始了穿越喀斯喀特山脉的漫长而曲折的路程。 来自英汉文学 - 廊桥遗梦

13 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。

14 celebrity   

n.名人，名流；著名，名声，名望

参考例句：

• Tom found himself something of a celebrity. 汤姆意识到自己已小有名气了。
• He haunted famous men, hoping to get celebrity for himself. 他常和名人在一起, 希望借此使自己获得名气。

15 cove   

n.小海湾，小峡谷

参考例句：

• The shore line is wooded,olive-green,a pristine cove.岸边一带林木蓊郁，嫩绿一片，好一个山外的小海湾。
• I saw two children were playing in a cove.我看到两个小孩正在一个小海湾里玩耍。

16 humane   

adj.人道的，富有同情心的

参考例句：

• Is it humane to kill animals for food?宰杀牲畜来吃合乎人道吗？
• Their aim is for a more just and humane society.他们的目标是建立一个更加公正、博爱的社会。

17 barter   

n.物物交换，以货易货，实物交易

参考例句：

• Chickens,goats and rabbits were offered for barter at the bazaar.在集市上，鸡、山羊和兔子被摆出来作物物交换之用。
• They have arranged food imports on a barter basis.他们以易货贸易的方式安排食品进口。

18 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。

19 ledge   

n.壁架，架状突出物；岩架，岩礁

参考例句：

• They paid out the line to lower him to the ledge.他们放出绳子使他降到那块岩石的突出部分。
• Suddenly he struck his toe on a rocky ledge and fell.突然他的脚趾绊在一块突出的岩石上，摔倒了。

20 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。

21 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。

22 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。

23 den   

n.兽穴；秘密地方；安静的小房间，私室

参考例句：

• There is a big fox den on the back hill.后山有一个很大的狐狸窝。
• The only way to catch tiger cubs is to go into tiger's den.不入虎穴焉得虎子。

24 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。

25 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。

26 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。

27 recede   

vi.退(去)，渐渐远去；向后倾斜，缩进

参考例句：

• The colleges would recede in importance.大学的重要性会降低。
• He saw that the dirty water had begun to recede.他发现那污浊的水开始往下退了。

28 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》

29 appellation   

n.名称，称呼

参考例句：

• The emperor of Russia Peter I was given the appellation " the Great ".俄皇彼得一世被加上了“大帝”的称号。
• Kinsfolk appellation is the kinfolks system reflection in language.亲属称谓是亲属制度在语言中的反应。

30 denomination   

n.命名，取名，(度量衡、货币等的)单位

参考例句：

• The firm is still operating under another denomination.这家公司改用了名称仍在继续营业。
• Litre is a metric denomination.升是公制单位。

31 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。

32 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。

33 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。

34 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。

35 Christian   

adj.基督教徒的；n.基督教徒

参考例句：

• They always addressed each other by their Christian name.他们总是以教名互相称呼。
• His mother is a sincere Christian.他母亲是个虔诚的基督教徒。

36 nautical   

adj.海上的，航海的，船员的

参考例句：

• A nautical mile is 1,852 meters.一海里等于1852米。
• It is 206 nautical miles from our present location.距离我们现在的位置有206海里。

37 fable   

n.寓言；童话；神话

参考例句：

• The fable is given on the next page. 这篇寓言登在下一页上。
• He had some motive in telling this fable. 他讲这寓言故事是有用意的。

38 rustic   

adj.乡村的，有乡村特色的；n.乡下人，乡巴佬

参考例句：

• It was nearly seven months of leisurely rustic living before Michael felt real boredom.这种悠闲的乡村生活过了差不多七个月之后,迈克尔开始感到烦闷。
• We hoped the fresh air and rustic atmosphere would help him adjust.我们希望新鲜的空气和乡村的氛围能帮他调整自己。

39 derive   

v.取得；导出；引申；来自；源自；出自

参考例句：

• We derive our sustenance from the land.我们从土地获取食物。
• We shall derive much benefit from reading good novels.我们将从优秀小说中获得很大好处。

40 derived   

vi.起源；由来；衍生；导出v.得到( derive的过去式和过去分词 )；（从…中）得到获得；源于；（从…中）提取

参考例句：

• Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
• He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》

41 recital   

n.朗诵，独奏会，独唱会

参考例句：

• She is going to give a piano recital.她即将举行钢琴独奏会。
• I had their total attention during the thirty-five minutes that my recital took.在我叙述的35分钟内，他们完全被我吸引了。

42 recitals   

n.独唱会( recital的名词复数 )；独奏会；小型音乐会、舞蹈表演会等；一系列事件等的详述

参考例句：

• His recitals have earned him recognition as a talented performer. 他的演奏会使他赢得了天才演奏家的赞誉。 来自《简明英汉词典》
• Her teachers love her playing, and encourage her to recitals. 她的老师欣赏她的演奏，并鼓励她举办独奏会。 来自互联网

43 narration   

n.讲述，叙述；故事；记叙体

参考例句：

• The richness of his novel comes from his narration of it.他小说的丰富多采得益于他的叙述。
• Narration should become a basic approach to preschool education.叙事应是幼儿教育的基本途径。

44 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。

45 vocation   

n.职业，行业

参考例句：

• She struggled for years to find her true vocation.她多年来苦苦寻找真正适合自己的职业。
• She felt it was her vocation to minister to the sick.她觉得照料病人是她的天职。

46 imprints   

n.压印( imprint的名词复数 )；痕迹；持久影响

参考例句：

• With each step he took, his boots left muddy imprints on the floor. 她父亲的毡靴一移动，就在地板上压了几个泥圈圈。 来自汉英文学 - 中国现代小说
• In Freudian theory, the imprints are memories, albeit unconscious ones. 在佛洛伊德理论中，这些痕迹就是记忆，只不过它们是无意识的。 来自互联网

47 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

48 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。

49 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。

50 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》

51 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》

52 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。

53 seaports   

n.海港( seaport的名词复数 )

参考例句：

• Airports have joined seaports as ports of entry for the visiting foreigner. 机场和海港一样成为来访的外国人的入境关口。 来自互联网
• Sanya has 16 seaports, 10 islands and 180km of coastline. 三亚有16个港口、10个海岛和180公里的海岸线。 来自互联网

54 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。

55 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。

56 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。

57 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。

58 stifling   

a.令人窒息的

参考例句：

• The weather is stifling. It looks like rain. 今天太闷热，光景是要下雨。
• We were stifling in that hot room with all the windows closed. 我们在那间关着窗户的热屋子里，简直透不过气来。

59 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。

60 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。

61 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

62 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。

63 deserted   

adj.荒芜的，荒废的，无人的，被遗弃的

参考例句：

• The deserted village was filled with a deathly silence.这个荒废的村庄死一般的寂静。
• The enemy chieftain was opposed and deserted by his followers.敌人头目众叛亲离。

64 barricade   

n.路障，栅栏，障碍；vt.设路障挡住

参考例句：

• The soldiers make a barricade across the road.士兵在路上设路障。
• It is difficult to break through a steel barricade.冲破钢铁障碍很难。

65 planks   

（厚）木板( plank的名词复数 )； 政纲条目，政策要点

参考例句：

• The house was built solidly of rough wooden planks. 这房子是用粗木板牢固地建造的。
• We sawed the log into planks. 我们把木头锯成了木板。

66 plank   

n.板条，木板，政策要点，政纲条目

参考例句：

• The plank was set against the wall.木板靠着墙壁。
• They intend to win the next election on the plank of developing trade.他们想以发展贸易的纲领来赢得下次选举。

67 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。

68 dwelling   

n.住宅，住所，寓所

参考例句：

• Those two men are dwelling with us.那两个人跟我们住在一起。
• He occupies a three-story dwelling place on the Park Street.他在派克街上有一幢3层楼的寓所。

69 obstinate   

adj.顽固的，倔强的，不易屈服的，较难治愈的

参考例句：

• She's too obstinate to let anyone help her.她太倔强了，不会让任何人帮她的。
• The trader was obstinate in the negotiation.这个商人在谈判中拗强固执。

70 regained   

复得( regain的过去式和过去分词 )； 赢回； 重回； 复至某地

参考例句：

• The majority of the people in the world have regained their liberty. 世界上大多数人已重获自由。
• She hesitated briefly but quickly regained her poise. 她犹豫片刻，但很快恢复了镇静。

71 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。

72 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。

73 intimidate   

vt.恐吓，威胁

参考例句：

• You think you can intimidate people into doing what you want?你以为你可以威胁别人做任何事？
• The first strike capacity is intended mainly to intimidate adversary.第一次攻击的武力主要是用来吓阻敌方的。

74 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。

75 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》

76 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。

77 gnat   

v.对小事斤斤计较，琐事

参考例句：

• Strain at a gnat and swallow a camel.小事拘谨，大事糊涂。
• He's always straining at a gnat.他总是对小事很拘谨。

78 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。

79 impelled   

v.推动、推进或敦促某人做某事( impel的过去式和过去分词 )

参考例句：

• He felt impelled to investigate further. 他觉得有必要作进一步调查。
• I feel impelled to express grave doubts about the project. 我觉得不得不对这项计划深表怀疑。 来自《简明英汉词典》

80 westward   

n.西方，西部；adj.西方的，向西的；adv.向西

参考例句：

• We live on the westward slope of the hill.我们住在这座山的西山坡。
• Explore westward or wherever.向西或到什么别的地方去勘探。

81 furrowed   

v.犁田，开沟( furrow的过去式和过去分词 )

参考例句：

• Overhead hung a summer sky furrowed with the rash of rockets. 头顶上的夏日夜空纵横着急疾而过的焰火。 来自辞典例句
• The car furrowed the loose sand as it crossed the desert. 车子横过沙漠，在松软的沙土上犁出了一道车辙。 来自辞典例句

82 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》

83 consonants   

n.辅音，子音( consonant的名词复数 )；辅音字母

参考例句：

• Consonants are frequently assimilated to neighboring consonants. 辅音往往被其邻近的辅音同化。 来自《简明英汉词典》
• Vowels possess greater sonority than consonants. 元音比辅音响亮。 来自《现代英汉综合大词典》

84 etymology   

n.语源；字源学

参考例句：

• The hippies' etymology is contentious.关于嬉皮士的语源是有争议的。
• The origin of OK became the Holy Grail of etymology.OK的出典成了词源学梦寐以求的圣杯。

85 radical   

n.激进份子，原子团，根号；adj.根本的，激进的，彻底的

参考例句：

• The patient got a radical cure in the hospital.病人在医院得到了根治。
• She is radical in her demands.她的要求十分偏激。

86 chronometer   

n.精密的计时器

参考例句：

• Murchison followed with his eye the hand of his chronometer.莫奇生的眼睛追随着他的时计的秒针。
• My watch is more expensive because it's a chronometer.我的手表是精密型的，所以要比你的贵。

87 longitude   

n.经线，经度

参考例句：

• The city is at longitude 21°east.这个城市位于东经21度。
• He noted the latitude and longitude,then made a mark on the admiralty chart.他记下纬度和经度，然后在航海图上做了个标记。

88 diminution   

n.减少；变小

参考例句：

• They hope for a small diminution in taxes.他们希望捐税能稍有减少。
• He experienced no diminution of his physical strength.他并未感觉体力衰落。

89 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。

90 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。

91 cavern   

n.洞穴，大山洞

参考例句：

• The cavern walls echoed his cries.大山洞的四壁回响着他的喊声。
• It suddenly began to shower,and we took refuge in the cavern.天突然下起雨来，我们在一个山洞里避雨。

92 labyrinth   

n.迷宫；难解的事物；迷路

参考例句：

• He wandered through the labyrinth of the alleyways.他在迷宫似的小巷中闲逛。
• The human mind is a labyrinth.人的心灵是一座迷宫。

93 minor   

adj.较小(少)的，较次要的；n.辅修学科；vi.辅修

参考例句：

• The young actor was given a minor part in the new play.年轻的男演员在这出新戏里被分派担任一个小角色。
• I gave him a minor share of my wealth.我把小部分财产给了他。

94 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。

95 lasting   

adj.永久的，永恒的；vbl.持续，维持

参考例句：

• The lasting war debased the value of the dollar.持久的战争使美元贬值。
• We hope for a lasting settlement of all these troubles.我们希望这些纠纷能获得永久的解决。

96 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。

97 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。

98 addicted   

adj.沉溺于....的，对...上瘾的

参考例句：

• He was addicted to heroin at the age of 17.他17岁的时候对海洛因上了瘾。
• She's become addicted to love stories.她迷上了爱情小说。

99 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。

100 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。

101 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

102 concise   

adj.简洁的，简明的

参考例句：

• The explanation in this dictionary is concise and to the point.这部词典里的释义简明扼要。
• I gave a concise answer about this.我对于此事给了一个简要的答复。

103 diffuse   

v.扩散；传播；adj.冗长的；四散的，弥漫的

参考例句：

• Direct light is better for reading than diffuse light.直射光比漫射光更有利于阅读。
• His talk was so diffuse that I missed his point.他的谈话漫无边际，我抓不住他的要点。

104 nomadic   

adj.流浪的；游牧的

参考例句：

• This tribe still live a nomadic life.这个民族仍然过着游牧生活。
• The plowing culture and the nomadic culture are two traditional principal cultures in China.农耕文化与游牧文化是我国传统的两大主体文化。

105 dwellings   

n.住处，处所( dwelling的名词复数 )

参考例句：

• The development will consist of 66 dwellings and a number of offices. 新建楼区将由66栋住房和一些办公用房组成。
• The hovels which passed for dwellings are being pulled down. 过去用作住室的陋屋正在被拆除。 来自《简明英汉词典》

106 maize   

n.玉米

参考例句：

• There's a field planted with maize behind the house.房子后面有一块玉米地。
• We can grow sorghum or maize on this plot.这块地可以种高粱或玉米。

107 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

108 possessed   

adj.疯狂的；拥有的，占有的

参考例句：

• He flew out of the room like a man possessed.他像着了魔似地猛然冲出房门。
• He behaved like someone possessed.他行为举止像是魔怔了。

109 beads   

n.（空心）小珠子( bead的名词复数 )；水珠；珠子项链

参考例句：

• a necklace of wooden beads 一条木珠项链
• Beads of perspiration stood out on his forehead. 他的前额上挂着汗珠。

110 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。

111 prohibition   

n.禁止；禁令，禁律

参考例句：

• The prohibition against drunken driving will save many lives.禁止酒后开车将会减少许多死亡事故。
• They voted in favour of the prohibition of smoking in public areas.他们投票赞成禁止在公共场所吸烟。

112 ornaments   

n.装饰( ornament的名词复数 )；点缀；装饰品；首饰v.装饰，点缀，美化( ornament的第三人称单数 )

参考例句：

• The shelves were chock-a-block with ornaments. 架子上堆满了装饰品。
• Playing the piano sets up resonance in those glass ornaments. 一弹钢琴那些玻璃饰物就会产生共振。 来自《简明英汉词典》

113 epidemic   

n.流行病；盛行；adj.流行性的，流传极广的

参考例句：

• That kind of epidemic disease has long been stamped out.那种传染病早已绝迹。
• The authorities tried to localise the epidemic.当局试图把流行病限制在局部范围。

114 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。

115 calamity   

n.灾害，祸患，不幸事件

参考例句：

• Even a greater natural calamity cannot daunt us. 再大的自然灾害也压不垮我们。
• The attack on Pearl Harbor was a crushing calamity.偷袭珍珠港(对美军来说)是一场毁灭性的灾难。

116 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。

117 indigenous   

adj.土产的，土生土长的，本地的

参考例句：

• Each country has its own indigenous cultural tradition.每个国家都有自己本土的文化传统。
• Indians were the indigenous inhabitants of America.印第安人是美洲的土著居民。

118 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。

119 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。

120 degenerate   

v.退步，堕落；adj.退步的，堕落的；n.堕落者

参考例句：

• He didn't let riches and luxury make him degenerate.他不因财富和奢华而自甘堕落。
• Will too much freedom make them degenerate?太多的自由会令他们堕落吗？

121 habitual   

adj.习惯性的；通常的，惯常的

参考例句：

• He is a habitual criminal.他是一个惯犯。
• They are habitual visitors to our house.他们是我家的常客。

122 ecclesiastics   

n.神职者，教会，牧师( ecclesiastic的名词复数 )

参考例句：

123 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。

124 alluded   

提及，暗指( allude的过去式和过去分词 )

参考例句：

• In your remarks you alluded to a certain sinister design. 在你的谈话中，你提到了某个阴谋。
• She also alluded to her rival's past marital troubles. 她还影射了对手过去的婚姻问题。

125 noxious   

adj.有害的，有毒的；使道德败坏的，讨厌的

参考例句：

• Heavy industry pollutes our rivers with noxious chemicals.重工业产生的有毒化学品会污染我们的河流。
• Many household products give off noxious fumes.很多家用产品散发有害气体。

126 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。

127 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。

128 oar   

n.桨，橹，划手；v.划行

参考例句：

• The sailors oar slowly across the river.水手们慢慢地划过河去。
• The blade of the oar was bitten off by a shark.浆叶被一条鲨鱼咬掉了。

129 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。

130 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。

131 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。

132 stony   

adj.石头的，多石头的，冷酷的，无情的

参考例句：

• The ground is too dry and stony.这块地太干，而且布满了石头。
• He listened to her story with a stony expression.他带着冷漠的表情听她讲经历。

133 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。

134 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。

135 swell   

vi.膨胀，肿胀；增长，增强

参考例句：

• The waves had taken on a deep swell.海浪汹涌。
• His injured wrist began to swell.他那受伤的手腕开始肿了。

136 meteoric   

adj.流星的，转瞬即逝的，突然的

参考例句：

• In my mind,losing weight is just something meteoric.在我眼中，减肥不过是昙花一现的事情。
• His early career had been meteoric.他的早期生涯平步青云。

137 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。

138 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。

139 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。

140 glossy   

adj.平滑的；有光泽的

参考例句：

• I like these glossy spots.我喜欢这些闪闪发光的花点。
• She had glossy black hair.她长着乌黑发亮的头发。

141 naturalists   

n.博物学家( naturalist的名词复数 )；（文学艺术的）自然主义者

参考例句：

• Naturalists differ much in determining what characters are of generic value. 自然学者对于不同性状决定生物的属的含义上，各有各的见解。 来自辞典例句
• This fact has led naturalists to believe that the Isthmus was formerly open. 使许多自然学者相信这个地蛱在以前原是开通的。 来自辞典例句

142 obstruct   

v.阻隔，阻塞(道路、通道等)；n.阻碍物，障碍物

参考例句：

• He became still more dissatisfied with it and secretly did everything in his power to obstruct it.他对此更不满意，尽在暗里使绊子。
• The fallen trees obstruct the road.倒下的树将路堵住了。

143 oxide   

n.氧化物

参考例句：

• Oxide is usually seen in our daily life.在我们的日常生活中氧化物很常见。
• How can you get rid of this oxide coating?你们该怎样除去这些氧化皮？

144 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。

145 milky   

adj.牛奶的，多奶的；乳白色的

参考例句：

• Alexander always has milky coffee at lunchtime.亚历山大总是在午餐时喝掺奶的咖啡。
• I like a hot milky drink at bedtime.我喜欢睡前喝杯热奶饮料。

146 lustre   

n.光亮，光泽；荣誉

参考例句：

• The sun was shining with uncommon lustre.太阳放射出异常的光彩。
• A good name keeps its lustre in the dark.一个好的名誉在黑暗中也保持它的光辉。

147 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。

148 clefts   

n.裂缝( cleft的名词复数 )；裂口；cleave的过去式和过去分词；进退维谷

参考例句：

• Clefts are often associated with other more serious congenital defects. 裂口常与其他更严重的先天性异常并发。 来自辞典例句
• Correction of palate clefts is much more difficult and usually not as satisfactory. 硬腭裂的矫正更为困难，且常不理想。 来自辞典例句

149 recur   

vi.复发，重现，再发生

参考例句：

• Economic crises recur periodically.经济危机周期性地发生。
• Of course,many problems recur at various periods.当然，有许多问题会在不同的时期反复提出。

150 variance   

n.矛盾，不同

参考例句：

• The question of woman suffrage sets them at variance. 妇女参政的问题使他们发生争执。
• It is unnatural for brothers to be at variance. 兄弟之间不睦是不近人情的。

151 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。

152 soluble   

adj.可溶的；可以解决的

参考例句：

• These tablets are soluble in water.这些药片可在水中溶解。
• Camphor is soluble in alcohol.樟脑在酒精中可以溶化。

153 sediment   

n.沉淀，沉渣，沉积(物)

参考例句：

• The sediment settled and the water was clear.杂质沉淀后，水变清了。
• Sediment begins to choke the channel's opening.沉积物开始淤塞河道口。

154 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。

155 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

156 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。

157 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》

158 motives   

n.动机，目的( motive的名词复数 )

参考例句：

• to impeach sb's motives 怀疑某人的动机
• His motives are unclear. 他的用意不明。

159 chimerical   

adj.荒诞不经的，梦幻的

参考例句：

• His Utopia is not a chimerical commonwealth but a practical improvement on what already exists.他的乌托邦不是空想的联邦，而是对那些已经存在的联邦事实上的改进。
• Most interpret the information from the victims as chimerical thinking.大多数来自于受害者的解释是被当作空想。

160 gaseous   

adj.气体的，气态的

参考例句：

• Air whether in the gaseous or liquid state is a fluid.空气，无论是气态的或是液态的，都是一种流体。
• Freon exists both in liquid and gaseous states.氟利昂有液态和气态两种形态。

161 acting   

n.演戏，行为，假装；adj.代理的，临时的，演出用的

参考例句：

• Ignore her,she's just acting.别理她，她只是假装的。
• During the seventies,her acting career was in eclipse.在七十年代，她的表演生涯黯然失色。

162 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。

163 stationary   

adj.固定的，静止不动的

参考例句：

• A stationary object is easy to be aimed at.一个静止不动的物体是容易瞄准的。
• Wait until the bus is stationary before you get off.你要等公共汽车停稳了再下车。

164 luminary   

n.名人，天体

参考例句：

• That luminary gazed earnestly at some papers before him.那个大好佬在用心细看面前的报纸。
• Now that a new light shone upon the horizon,this older luminary paled in the west.现在东方地平线上升起了一轮朝阳，这弯残月就在西边天际失去了光泽。

165 density   

n.密集，密度，浓度

参考例句：

• The population density of that country is 685 per square mile.那个国家的人口密度为每平方英里685人。
• The region has a very high population density.该地区的人口密度很高。

166 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。

167 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。

168 ledges   

n.（墙壁，悬崖等）突出的狭长部分( ledge的名词复数 )；（平窄的）壁架；横档；（尤指）窗台

参考例句：

• seabirds nesting on rocky ledges 海鸟在岩架上筑巢
• A rusty ironrod projected mournfully from one of the window ledges. 一个窗架上突出一根生锈的铁棒，真是满目凄凉。 来自辞典例句

169 emission   

n.发出物，散发物；发出，散发

参考例句：

• Rigorous measures will be taken to reduce the total pollutant emission.采取严格有力措施，降低污染物排放总量。
• Finally,the way to effectively control particulate emission is pointed out.最后，指出有效降低颗粒排放的方向。

170 suffocation   

n.窒息

参考例句：

• The greatest dangers of pyroclastic avalanches are probably heat and suffocation. 火成碎屑崩落的最大危害可能是炽热和窒息作用。 来自辞典例句
• The room was hot to suffocation. 房间热得闷人。 来自辞典例句

171 malady   

n.病，疾病(通常做比喻)

参考例句：

• There is no specific remedy for the malady.没有医治这种病的特效药。
• They are managing to control the malady into a small range.他们设法将疾病控制在小范围之内。

172 ravages   

劫掠后的残迹，破坏的结果，毁坏后的残迹

参考例句：

• the ravages of war 战争造成的灾难
• It is hard for anyone to escape from the ravages of time. 任何人都很难逃避时间的摧残。

173 renounce   

v.放弃；拒绝承认，宣布与…断绝关系

参考例句：

• She decided to renounce the world and enter a convent.她决定弃绝尘世去当修女。
• It was painful for him to renounce his son.宣布与儿子脱离关系对他来说是很痛苦的。

174 scourge   

n.灾难，祸害；v.蹂躏

参考例句：

• Smallpox was once the scourge of the world.天花曾是世界的大患。
• The new boss was the scourge of the inefficient.新老板来了以后，不称职的人就遭殃了。

175 thither   

adv.向那里；adj.在那边的，对岸的

参考例句：

• He wandered hither and thither looking for a playmate.他逛来逛去找玩伴。
• He tramped hither and thither.他到处流浪。

176 counteracted   

对抗，抵消( counteract的过去式 )

参考例句：

• This can be counteracted only by very effective insulation. 这只能用非常有效的绝缘来防止。
• The effect of his preaching was counteracted by the looseness of his behavior. 他讲道的效果被他放荡的生活所抵消了。

177 vaccination   

n.接种疫苗，种痘

参考例句：

• Vaccination is a preventive against smallpox.种痘是预防天花的方法。
• Doctors suggest getting a tetanus vaccination every ten years.医生建议每十年注射一次破伤风疫苗。

178 blessings   

n.（上帝的）祝福( blessing的名词复数 )；好事；福分；因祸得福

参考例句：

• Afflictions are sometimes blessings in disguise. 塞翁失马，焉知非福。 来自《简明英汉词典》
• We don't rely on blessings from Heaven. 我们不靠老天保佑。 来自《现代汉英综合大词典》

179 repugnance   

n.嫌恶

参考例句：

• He fought down a feelings of repugnance.他抑制住了厌恶感。
• She had a repugnance to the person with whom she spoke.她看不惯这个和她谈话的人。

180 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。

181 pregnancy   

n.怀孕，怀孕期

参考例句：

• Early pregnancy is often accompanied by nausea.怀孕早期常有恶心的现象。
• Smoking during pregnancy increases the risk of miscarriage.怀孕期吸烟会增加流产的危险。

182 propriety   

n.正当行为；正当；适当

参考例句：

• We hesitated at the propriety of the method.我们对这种办法是否适用拿不定主意。
• The sensitive matter was handled with great propriety.这件机密的事处理得极为适当。

183 vilest   

adj.卑鄙的( vile的最高级 )；可耻的；极坏的；非常讨厌的

参考例句：

184 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。

185 nay   

adv.不；n.反对票，投反对票者

参考例句：

• He was grateful for and proud of his son's remarkable,nay,unique performance.他为儿子出色的，不，应该是独一无二的表演心怀感激和骄傲。
• Long essays,nay,whole books have been written on this.许多长篇大论的文章，不，应该说是整部整部的书都是关于这件事的。

186 physiology   

n.生理学，生理机能

参考例句：

• He bought a book about physiology.他买了一本生理学方面的书。
• He was awarded the Nobel Prize for achievements in physiology.他因生理学方面的建树而被授予诺贝尔奖。

187 disturbance   

n.动乱，骚动；打扰，干扰；(身心)失调

参考例句：

• He is suffering an emotional disturbance.他的情绪受到了困扰。
• You can work in here without any disturbance.在这儿你可不受任何干扰地工作。

188 conjugal   

adj.婚姻的，婚姻性的

参考例句：

• Conjugal visits are banned,so marriages break down.配偶访问是禁止的，罪犯的婚姻也因此破裂。
• Conjugal fate is something delicate.缘分，其实是一种微妙的东西。

189 tranquillity   

n. 平静, 安静

参考例句：

• The phenomenon was so striking and disturbing that his philosophical tranquillity vanished. 这个令人惶惑不安的现象，扰乱了他的旷达宁静的心境。
• My value for domestic tranquillity should much exceed theirs. 我应该远比他们重视家庭的平静生活。

190 robust   

adj.强壮的，强健的，粗野的，需要体力的，浓的

参考例句：

• She is too tall and robust.她个子太高，身体太壮。
• China wants to keep growth robust to reduce poverty and avoid job losses,AP commented.美联社评论道，中国希望保持经济强势增长，以减少贫困和失业状况。

191 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。

192 ridicule   

v.讥讽，挖苦；n.嘲弄

参考例句：

• You mustn't ridicule unfortunate people.你不该嘲笑不幸的人。
• Silly mistakes and queer clothes often arouse ridicule.荒谬的错误和古怪的服装常会引起人们的讪笑。

193 lavishes   

v.过分给予，滥施( lavish的第三人称单数 )

参考例句：

• Playing computer games all day lavishes parents' hard-earned money. 整天玩电脑游戏浪费父母的血汗钱。 来自互联网
• The development of space exploration lavishes the limited public funds. 发展太空探索会浪费有限的公共资金。 来自互联网

194 caress   

vt./n.爱抚，抚摸

参考例句：

• She gave the child a loving caress.她疼爱地抚摸着孩子。
• She feasted on the caress of the hot spring.她尽情享受着温泉的抚爱。

195 caresses   

爱抚，抚摸( caress的名词复数 )

参考例句：

• A breeze caresses the cheeks. 微风拂面。
• Hetty was not sufficiently familiar with caresses or outward demonstrations of fondness. 海蒂不习惯于拥抱之类过于外露地表现自己的感情。

196 parental   

adj.父母的；父的；母的

参考例句：

• He encourages parental involvement in the running of school.他鼓励学生家长参与学校的管理。
• Children always revolt against parental disciplines.孩子们总是反抗父母的管束。

197 imposing   

adj.使人难忘的，壮丽的，堂皇的，雄伟的

参考例句：

• The fortress is an imposing building.这座城堡是一座宏伟的建筑。
• He has lost his imposing appearance.他已失去堂堂仪表。

198 majestic   

adj.雄伟的，壮丽的，庄严的，威严的，崇高的

参考例句：

• In the distance rose the majestic Alps.远处耸立着雄伟的阿尔卑斯山。
• He looks majestic in uniform.他穿上军装显得很威风。

199 confluence   

n.汇合，聚集

参考例句：

• They built the city at the confluence of two rivers.他们建造了城市的汇合两条河流。
• The whole DV movements actually was a confluence of several trends.整个当时的DV运动，实际上是几股潮流的同谋。

200 impeded   

阻碍，妨碍，阻止( impede的过去式和过去分词 )

参考例句：

• Work on the building was impeded by severe weather. 楼房的施工因天气恶劣而停了下来。
• He was impeded in his work. 他的工作受阻。

201 eddies   

（水、烟等的）漩涡，涡流( eddy的名词复数 )

参考例句：

• Viscosity overwhelms the smallest eddies and converts their energy into heat. 粘性制服了最小的旋涡而将其能量转换为热。
• But their work appears to merge in the study of large eddies. 但在大旋涡的研究上，他们的工作看来却殊途同归。

202 uprooted   

v.把（某物）连根拔起( uproot的过去式和过去分词 )；根除；赶走；把…赶出家园

参考例句：

• Many people were uprooted from their homes by the flood. 水灾令许多人背井离乡。 来自《简明英汉词典》
• The hurricane blew with such force that trees were uprooted. 飓风强烈地刮着，树都被连根拔起了。 来自《简明英汉词典》

203 woe   

n.悲哀，苦痛，不幸，困难；int.用来表达悲伤或惊慌

参考例句：

• Our two peoples are brothers sharing weal and woe.我们两国人民是患难与共的兄弟。
• A man is well or woe as he thinks himself so.自认祸是祸，自认福是福。

204 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。

205 artifice   

n.妙计，高明的手段；狡诈，诡计

参考例句：

• The use of mirrors in a room is an artifice to make the room look larger.利用镜子装饰房间是使房间显得大一点的巧妙办法。
• He displayed a great deal of artifice in decorating his new house.他在布置新房子中表现出富有的技巧。

206 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。

207 proceeding   

n.行动，进行，(pl.)会议录，学报

参考例句：

• This train is now proceeding from Paris to London.这次列车从巴黎开往伦敦。
• The work is proceeding briskly.工作很有生气地进展着。

208 dike   

n.堤，沟；v.开沟排水

参考例句：

• They dug a dike along walls of the school.他们沿校墙挖沟。
• Fortunately,the flood did not break the dike.还好，这场大水没有把堤坝冲坏。

209 precipitating   

adj.急落的，猛冲的v.（突如其来地）使发生( precipitate的现在分词 )；促成；猛然摔下；使沉淀

参考例句：

• Precipitating electrode plate is a key part in electrostatic precipitation equipment. 静电收尘板是静电收尘设备中的关键部件。 来自互联网
• The precipitation bond adopts a sloped tube to enhance the precipitating efficiency. 沉淀池采用斜管，提高了沉降效率。 来自互联网

210 gratuitously   

平白

参考例句：

• They rebuild their houses for them gratuitously when they are ruined. 如果他们的房屋要坍了，就会有人替他们重盖，不要工资。 来自互联网
• He insulted us gratuitously. 他在毫无理由的情况下侮辱了我们。 来自互联网

211 ridge   

n.山脊；鼻梁；分水岭

参考例句：

• We clambered up the hillside to the ridge above.我们沿着山坡费力地爬上了山脊。
• The infantry were advancing to attack the ridge.步兵部队正在向前挺进攻打山脊。

212 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。

213 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。

214 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。

215 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。

216 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？

217 ridges   

n.脊( ridge的名词复数 )；山脊；脊状突起；大气层的)高压脊

参考例句：

• The path winds along mountain ridges. 峰回路转。
• Perhaps that was the deepest truth in Ridges's nature. 在里奇斯的思想上，这大概可以算是天经地义第一条了。

218 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。

219 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。

220 sketch   

n.草图；梗概；素描；v.素描；概述

参考例句：

• My sister often goes into the country to sketch. 我姐姐常到乡间去写生。
• I will send you a slight sketch of the house.我将给你寄去房屋的草图。

221 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。

222 buttresses   

n.扶壁，扶垛( buttress的名词复数 )v.用扶壁支撑，加固( buttress的第三人称单数 )

参考例句：

• Flying buttresses were constructed of vertical masonry piers with arches curving out from them like fingers. 飞梁结构，灵感来自于带拱形的垂直石质桥墩，外形像弯曲的手指。 来自互联网
• GOTHIC_BUTTRESSES_DESC;Gothic construction, particularly in its later phase, is characterized by lightness and soaring spaces. 哥特式建筑，尤其是其发展的后期，以轻灵和高耸的尖顶为标志。 来自互联网

223 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。

224 ascertained   

v.弄清，确定，查明( ascertain的过去式和过去分词 )

参考例句：

• The previously unidentified objects have now been definitely ascertained as being satellites. 原来所说的不明飞行物现在已证实是卫星。 来自《简明英汉词典》
• I ascertained that she was dead. 我断定她已经死了。 来自《简明英汉词典》

225 secondly   

adv.第二，其次

参考例句：

• Secondly,use your own head and present your point of view.第二，动脑筋提出自己的见解。
• Secondly it is necessary to define the applied load.其次，需要确定所作用的载荷。

226 treatises   

n.专题著作，专题论文，专著( treatise的名词复数 )

参考例句：

• Many treatises in different languages have been published on pigeons. 关于鸽类的著作，用各种文字写的很多。 来自辞典例句
• Many other treatises incorporated the new rigor. 许多其它的专题论文体现了新的严密性。 来自辞典例句

227 surmount   

vt.克服；置于…顶上

参考例句：

• We have many problems to surmount before we can start the project.我们得克服许多困难才能著手做这项工作。
• We are fully confident that we can surmount these difficulties.我们完全相信我们能够克服这些困难。

228 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》

229 fecundity   

n.生产力；丰富

参考例句：

• The probability of survival is the reciprocal of fecundity.生存的概率是生殖力的倒数。
• The boy's fecundity of imagination amazed his teacher.男孩想像力的丰富使教师感到惊异。

230 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。

231 bosom   

n.胸，胸部；胸怀；内心；adj.亲密的

参考例句：

• She drew a little book from her bosom.她从怀里取出一本小册子。
• A dark jealousy stirred in his bosom.他内心生出一阵恶毒的嫉妒。

232 lichens   

n.地衣( lichen的名词复数 )

参考例句：

• The only plants to be found in Antarctica are algae, mosses, and lichens. 在南极洲所发现的植物只有藻类、苔藓和地衣。 来自辞典例句
• Litmus: Mixture of coloured organic compounds obtained from several species of lichens. 石蕊：从几种地衣类植物中获取的带色有机化合物的混合物。 来自互联网

233 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。

234 evergreen   

n.常青树；adj.四季常青的

参考例句：

• Some trees are evergreen;they are called evergreen.有的树是常青的，被叫做常青树。
• There is a small evergreen shrub on the hillside.山腰上有一小块常绿灌木丛。

235 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。

236 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。

237 isles   

岛( isle的名词复数 )

参考例句：

• the geology of the British Isles 不列颠群岛的地质
• The boat left for the isles. 小船驶向那些小岛。

238 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。

239 picturesque   

adj.美丽如画的，（语言）生动的，绘声绘色的

参考例句：

• You can see the picturesque shores beside the river.在河边你可以看到景色如画的两岸。
• That was a picturesque phrase.那是一个形象化的说法。

240 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。

241 majestically   

雄伟地； 庄重地； 威严地； 崇高地

参考例句：

• The waters of the Changjiang River rolled to the east on majestically. 雄伟的长江滚滚东流。
• Towering snowcapped peaks rise majestically. 白雪皑皑的山峰耸入云霄。

242 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。

243 disperse   

vi.使分散；使消失；vt.分散；驱散

参考例句：

• The cattle were swinging their tails to disperse the flies.那些牛甩动着尾巴驱赶苍蝇。
• The children disperse for the holidays.孩子们放假了。

244 azure   

adj.天蓝色的，蔚蓝色的

参考例句：

• His eyes are azure.他的眼睛是天蓝色的。
• The sun shone out of a clear azure sky.清朗蔚蓝的天空中阳光明媚。

245 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。

246 hind   

adj.后面的，后部的

参考例句：

• The animal is able to stand up on its hind limbs.这种动物能够用后肢站立。
• Don't hind her in her studies.不要在学业上扯她后腿。

247 sketched   

v.草拟（sketch的过去式与过去分词形式）

参考例句：

• The historical article sketched the major events of the decade. 这篇有关历史的文章概述了这十年中的重大事件。 来自《简明英汉词典》
• He sketched the situation in a few vivid words. 他用几句生动的语言简述了局势。 来自《现代汉英综合大词典》

248 harmonious   

adj.和睦的，调和的，和谐的，协调的

参考例句：

• Their harmonious relationship resulted in part from their similar goals.他们关系融洽的部分原因是他们有着相似的目标。
• The room was painted in harmonious colors.房间油漆得色彩调和。

249 laurels   

n.桂冠，荣誉

参考例句：

• The path was lined with laurels.小路两旁都种有月桂树。
• He reaped the laurels in the finals.他在决赛中荣膺冠军。

250 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。

251 flamingos   

n.红鹳，火烈鸟（羽毛粉红、长颈的大涉禽）( flamingo的名词复数 )

参考例句：

• Flamingos stand in a salt lake in Larnaca, Cyprus. 塞浦路斯的拉纳卡市一个盐湖中的火烈鸟。 来自互联网
• The research started researchers studied greater flamingos and in a bird sanctuary in southern Spain. 研究人员在西班牙南部的一个鸟类保护区对大型火烈鸟进行研究。 来自互联网

252 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。

253 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。

254 migration   

n.迁移，移居，（鸟类等的）迁徙

参考例句：

• Swallows begin their migration south in autumn.燕子在秋季开始向南方迁移。
• He described the vernal migration of birds in detail.他详细地描述了鸟的春季移居。

255 diffuses   

（使光）模糊，漫射，漫散( diffuse的第三人称单数 )； （使）扩散； （使）弥漫； （使）传播

参考例句：

• A gas in solution diffuses from region of greater to one of less concentration. 溶液中的气体由浓度较高的区域向浓度较低的区域扩散。
• The sun diffuses light and heat. 太阳发出光和热。

256 parasite   

n.寄生虫；寄生菌；食客

参考例句：

• The lazy man was a parasite on his family.那懒汉是家里的寄生虫。
• I don't want to be a parasite.I must earn my own way in life.我不想做寄生虫，我要自己养活自己。

257 mosses   

n. 藓类, 苔藓植物 名词moss的复数形式

参考例句：

• Ferns, mosses and fungi spread by means of spores. 蕨类植物、苔藓和真菌通过孢子传播蔓生。
• The only plants to be found in Antarctica are algae, mosses, and lichens. 在南极洲所发现的植物只有藻类、苔藓和地衣。

258 specimen   

n.样本，标本

参考例句：

• You'll need tweezers to hold up the specimen.你要用镊子来夹这标本。
• This specimen is richly variegated in colour.这件标本上有很多颜色。

259 botanists   

n.植物学家，研究植物的人( botanist的名词复数 )

参考例句：

• Botanists had some difficulty categorizing the newly found plant. 植物学家们不大容易确定这种新发现的植物的种类。 来自辞典例句
• Botanists refer this flower to the rose family. 植物学家将这花归入蔷薇科。 来自辞典例句

260 adorn   

vt.使美化，装饰

参考例句：

• She loved to adorn herself with finery.她喜欢穿戴华丽的服饰。
• His watercolour designs adorn a wide range of books.他的水彩设计使许多图书大为生色。

261 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。

262 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。

263 plumes   

羽毛( plume的名词复数 )； 羽毛饰； 羽毛状物； 升上空中的羽状物

参考例句：

• The dancer wore a headdress of pink ostrich plumes. 那位舞蹈演员戴着粉色鸵鸟毛制作的头饰。
• The plumes on her bonnet barely moved as she nodded. 她点点头，那帽子的羽毛在一个劲儿颤动。

264 disinterestedness   

参考例句：

• Because it requires detachment, disinterestedness, it is the finest flower and test of a liberal civilization. 科学方法要求人们超然独立、公正无私，因而它是自由文明的最美之花和最佳试金石。 来自哲学部分
• His chief equipment seems to be disinterestedness. He moves in a void, without audience. 他主要的本事似乎是超然不群；生活在虚无缥缈中，没有听众。 来自辞典例句

265 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

266 embellish   

v.装饰，布置；给…添加细节，润饰

参考例句：

• I asked him not to embellish the truth with ideas of his own.我要他不对事实添油加醋。
• Can you embellish your refusal just a little bit?你可以对你的婉拒之辞略加修饰吗？

267 dispositions   

安排( disposition的名词复数 )； 倾向； （财产、金钱的）处置； 气质

参考例句：

• We got out some information about the enemy's dispositions from the captured enemy officer. 我们从捕获的敌军官那里问出一些有关敌军部署的情况。
• Elasticity, solubility, inflammability are paradigm cases of dispositions in natural objects. 伸缩性、可缩性、易燃性是天然物体倾向性的范例。

268 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。

269 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。

270 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。

271 arid   

adj.干旱的；(土地)贫瘠的

参考例句：

• These trees will shield off arid winds and protect the fields.这些树能挡住旱风,保护农田。
• There are serious problems of land degradation in some arid zones.在一些干旱地带存在严重的土地退化问题。

272 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。

273 inaccessible   

adj.达不到的，难接近的

参考例句：

• This novel seems to me among the most inaccessible.这本书对我来说是最难懂的小说之一。
• The top of Mount Everest is the most inaccessible place in the world.珠穆朗玛峰是世界上最难到达的地方。

274 coves   

n.小海湾( cove的名词复数 )；家伙

参考例句：

• Grenada's unique layout includes many finger-like coves, making the island a popular destination. 格林纳达独特的地形布局包括许多手指状的洞穴，使得这个岛屿成为一个受人欢迎的航海地。 来自互联网

275 velocity   

n.速度，速率

参考例句：

• Einstein's theory links energy with mass and velocity of light.爱因斯坦的理论把能量同质量和光速联系起来。
• The velocity of light is about 300000 kilometres per second.光速约为每秒300000公里。

276 vestiges   

残余部分( vestige的名词复数 )； 遗迹； 痕迹； 毫不

参考例句：

• the last vestiges of the old colonial regime 旧殖民制度最后的残余
• These upright stones are the vestiges of some ancient religion. 这些竖立的石头是某种古代宗教的遗迹。

277 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。

278 foamy   

adj.全是泡沫的，泡沫的，起泡沫的

参考例句：

• In Internet foamy 2001, so hard when, everybody stayed. 在互联网泡沫的2001年，那么艰难的时候，大家都留下来了。 来自互联网
• It's foamy milk that you add to the coffee. 将牛奶打出泡沫后加入咖啡中。 来自互联网

279 toucan   

n.巨嘴鸟，犀鸟

参考例句：

• A toucan is a South American bird.巨嘴鸟是北美的一种鸟。
• There is a toucan in this zoo.这个动物园有一只巨嘴鸟。

280 glaciers   

冰河，冰川( glacier的名词复数 )

参考例句：

• Glaciers gouged out valleys from the hills. 冰川把丘陵地带冲出一条条山谷。
• It has ice and snow glaciers, rainforests and beautiful mountains. 既有冰川，又有雨林和秀丽的山峰。 来自英语晨读30分（高一）

281 caverns   

大山洞，大洞穴( cavern的名词复数 )

参考例句：

• Within were dark caverns; what was inside them, no one could see. 里面是一个黑洞，这里面有什么东西，谁也望不见。 来自汉英文学 - 家（1-26） - 家（1-26）
• UNDERGROUND Under water grottos, caverns Filled with apes That eat figs. 在水帘洞里，挤满了猿争吃无花果。

282 tumult   

n.喧哗；激动，混乱；吵闹

参考例句：

• The tumult in the streets awakened everyone in the house.街上的喧哗吵醒了屋子里的每一个人。
• His voice disappeared under growing tumult.他的声音消失在越来越响的喧哗声中。

283 arduous   

adj.艰苦的，费力的，陡峭的

参考例句：

• We must have patience in doing arduous work.我们做艰苦的工作要有耐性。
• The task was more arduous than he had calculated.这项任务比他所估计的要艰巨得多。

284 bruised   

[医]青肿的，瘀紫的

参考例句：

• his bruised and bloodied nose 他沾满血的青肿的鼻子
• She had slipped and badly bruised her face. 她滑了一跤，摔得鼻青脸肿。

285 extricate   

v.拯救，救出；解脱

参考例句：

• How can we extricate the firm from this trouble?我们该如何承救公司脱离困境呢？
• She found it impossible to extricate herself from the relationship.她发现不可能把自己从这种关系中解脱出来。

286 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。

287 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。

288 poetical   

adj.似诗人的；诗一般的；韵文的；富有诗意的

参考例句：

• This is a poetical picture of the landscape. 这是一幅富有诗意的风景画。 来自《简明英汉词典》
• John is making a periphrastic study in a worn-out poetical fashion. 约翰正在对陈腐的诗风做迂回冗长的研究。 来自辞典例句

289 fidelity   

n.忠诚，忠实；精确

参考例句：

• There is nothing like a dog's fidelity.没有什么能比得上狗的忠诚。
• His fidelity and industry brought him speedy promotion.他的尽职及勤奋使他很快地得到晋升。

290 embark   

vi.乘船，着手，从事，上飞机

参考例句：

• He is about to embark on a new business venture.他就要开始新的商业冒险活动。
• Many people embark for Europe at New York harbor.许多人在纽约港乘船去欧洲。

291 steers   

n.阉公牛，肉用公牛( steer的名词复数 )v.驾驶( steer的第三人称单数 )；操纵；控制；引导

参考例句：

• This car steers easily. 这部车子易于驾驶。 来自《简明英汉词典》
• Good fodder fleshed the steers up. 优质饲料使菜牛长肉。 来自辞典例句

292 buffeted   

反复敲打( buffet的过去式和过去分词 )； 连续猛击； 打来打去； 推来搡去

参考例句：

• to be buffeted by the wind 被风吹得左右摇摆
• We were buffeted by the wind and the rain. 我们遭到风雨的袭击。

293 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。

294 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。

295 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

296 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。

297 impedes   

阻碍，妨碍，阻止( impede的第三人称单数 )

参考例句：

• High packing density greatly impedes the cooling of the array. 高存贮密度很不利于阵列的散热。
• The inflexibility of the country's labor market seriously impedes its economic recovery. 该国劳工市场缺乏灵活性，这严重阻碍了它的经济恢复。

298 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》

299 eminently   

adv.突出地；显著地；不寻常地

参考例句：

• She seems eminently suitable for the job. 她看来非常适合这个工作。
• It was an eminently respectable boarding school. 这是所非常好的寄宿学校。 来自《简明英汉词典》

300 hydraulic   

adj.水力的；水压的，液压的；水力学的

参考例句：

• The boat has no fewer than five hydraulic pumps.这艘船配有不少于5个液压泵。
• A group of apprentics were operating the hydraulic press.一群学徒正在开动水压机。

301 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。

302 evaporation   

n.蒸发，消失

参考例句：

• Be careful not to lose too much liquid by evaporation.小心不要因蒸发失去太多水分。
• Our bodies can sweat,thereby losing heat by evaporation.我们的身体能出汗，由此可以蒸发散热。

303 funnels   

漏斗( funnel的名词复数 )； （轮船，火车等的）烟囱

参考例句：

• Conventional equipment such as mixing funnels, pumps, solids eductors and the like can be employed. 常用的设备，例如混合漏斗、泵、固体引射器等，都可使用。
• A jet of smoke sprang out of the funnels. 喷射的烟雾从烟囱里冒了出来。

304 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。

305 pebbles   

[复数]鹅卵石； 沙砾； 卵石，小圆石( pebble的名词复数 )

参考例句：

• The pebbles of the drive crunched under his feet. 汽车道上的小石子在他脚底下喀嚓作响。
• Line the pots with pebbles to ensure good drainage. 在罐子里铺一层鹅卵石，以确保排水良好。

306 testimony   

n.证词；见证，证明

参考例句：

• The testimony given by him is dubious.他所作的证据是可疑的。
• He was called in to bear testimony to what the police officer said.他被传入为警官所说的话作证。

307 arteries   

n.动脉( artery的名词复数 )；干线，要道

参考例句：

• Even grafting new blood vessels in place of the diseased coronary arteries has been tried. 甚至移植新血管代替不健康的冠状动脉的方法都已经试过。 来自《简明英汉词典》
• This is the place where the three main arteries of West London traffic met. 这就是伦敦西部三条主要交通干线的交汇处。 来自《简明英汉词典》

308 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。

309 ramifications   

n.结果，后果( ramification的名词复数 )

参考例句：

• These changes are bound to have widespread social ramifications. 这些变化注定会造成许多难以预料的社会后果。
• What are the ramifications of our decision to join the union? 我们决定加入工会会引起哪些后果呢？ 来自《简明英汉词典》

310 alleged   

a.被指控的，嫌疑的

参考例句：

• It was alleged that he had taken bribes while in office. 他被指称在任时收受贿赂。
• alleged irregularities in the election campaign 被指称竞选运动中的不正当行为

311 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。

312 augmenting   

使扩张

参考例句：

• My business was now constantly augmenting, and my circumstances growing daily easier. 现在，我的业务不断扩大，我的境况日益安逸。
• I spent a penitential weekend augmenting the green acceptable. 我临时唯有利用周末在每顶绿帽子上加一点红色上去，以免男性来宾不肯戴上。

313 radius   

n.半径，半径范围；有效航程，范围，界限

参考例句：

• He has visited every shop within a radius of two miles.周围两英里以内的店铺他都去过。
• We are measuring the radius of the circle.我们正在测量圆的半径。

314 rustling   

n. 瑟瑟声，沙沙声 adj. 发沙沙声的

参考例句：

• the sound of the trees rustling in the breeze 树木在微风中发出的沙沙声
• the soft rustling of leaves 树叶柔和的沙沙声

315 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。

316 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。

317 abrupt   

adj.突然的，意外的；唐突的，鲁莽的

参考例句：

• The river takes an abrupt bend to the west.这河突然向西转弯。
• His abrupt reply hurt our feelings.他粗鲁的回答伤了我们的感情。

318 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。

319 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。

320 oblique   

adj.斜的，倾斜的，无诚意的，不坦率的

参考例句：

• He made oblique references to her lack of experience.他拐弯抹角地说她缺乏经验。
• She gave an oblique look to one side.她向旁边斜看了一眼。

321 percussion   

n.打击乐器；冲突，撞击；震动，音响

参考例句：

• In an orchestra,people who play percussion instruments sit at the back.在管弦乐队中，演奏打击乐器的人会坐在后面。
• Percussion of the abdomen is often omitted.腹部叩诊常被省略。

322 interpretation   

n.解释，说明，描述；艺术处理

参考例句：

• His statement admits of one interpretation only.他的话只有一种解释。
• Analysis and interpretation is a very personal thing.分析与说明是个很主观的事情。

323 elastic   

n.橡皮圈，松紧带；adj.有弹性的；灵活的

参考例句：

• Rubber is an elastic material.橡胶是一种弹性材料。
• These regulations are elastic.这些规定是有弹性的。

324 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。

325 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。

326 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？

327 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。

328 champagne   

n.香槟酒；微黄色

参考例句：

• There were two glasses of champagne on the tray.托盘里有两杯香槟酒。
• They sat there swilling champagne.他们坐在那里大喝香槟酒。

329 esteem   

n.尊敬，尊重；vt.尊重，敬重；把…看作

参考例句：

• I did not esteem him to be worthy of trust.我认为他不值得信赖。
• The veteran worker ranks high in public love and esteem.那位老工人深受大伙的爱戴。

330 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。

331 zoologists   

动物学家( zoologist的名词复数 )

参考例句：

• Zoologists refer barnacles to Crustanceans. 动物学家把螺蛳归入甲壳类。
• It is now a source of growing interest for chemists and zoologists as well. 它现在也是化学家和动物学家愈感兴趣的一个所在。

332 presentiment   

n.预感，预觉

参考例句：

• He had a presentiment of disaster.他预感会有灾难降临。
• I have a presentiment that something bad will happen.我有某种不祥事要发生的预感。

333 parenthesis   

n.圆括号，插入语，插曲，间歇，停歇

参考例句：

• There is no space between the function name and the parenthesis.函数名与括号之间没有空格。
• In this expression,we do not need a multiplication sign or parenthesis.这个表达式中，我们不需要乘号或括号。

334 positively   

adv.明确地，断然，坚决地；实在，确实

参考例句：

• She was positively glowing with happiness.她满脸幸福。
• The weather was positively poisonous.这天气着实讨厌。

335 tempt   

vt.引诱，勾引，吸引，引起…的兴趣

参考例句：

• Nothing could tempt him to such a course of action.什么都不能诱使他去那样做。
• The fact that she had become wealthy did not tempt her to alter her frugal way of life.她有钱了，可这丝毫没能让她改变节俭的生活习惯。

336 cupidity   

n.贪心，贪财

参考例句：

• Her cupidity is well known.她的贪婪尽人皆知。
• His eyes gave him away,shining with cupidity.他的眼里闪着贪婪的光芒，使他暴露无遗。

337 hatchets   

n.短柄小斧( hatchet的名词复数 )；恶毒攻击；诽谤；休战

参考例句：

• Hatchets, knives, bayonets, swords, all brought to be sharpened, were all red with it. 他们带来磨利的战斧、短刀、刺刀、战刀也全都有殷红的血。 来自英汉文学 - 双城记
• They smashed all the carved paneling with their axes and hatchets. 圣所中一切雕刻的、们现在用斧子锤子打坏了。 来自互联网

338 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。

339 commissioners   

n.专员( commissioner的名词复数 )；长官；委员；政府部门的长官

参考例句：

• The Commissioners of Inland Revenue control British national taxes. 国家税收委员管理英国全国的税收。 来自《简明英汉词典》
• The SEC has five commissioners who are appointed by the president. 证券交易委员会有５名委员，是由总统任命的。 来自英汉非文学 - 政府文件

340 culpable   

adj.有罪的，该受谴责的

参考例句：

• The judge found the man culpable.法官认为那个人有罪。
• Their decision to do nothing makes them culpable.他们不采取任何行动的决定使他们难辞其咎。

341 negligence   

n.疏忽，玩忽，粗心大意

参考例句：

• They charged him with negligence of duty.他们指责他玩忽职守。
• The traffic accident was allegedly due to negligence.这次车祸据说是由于疏忽造成的。

342 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。

343 devoured   

吞没( devour的过去式和过去分词 )； 耗尽； 津津有味地看； 狼吞虎咽地吃光

参考例句：

• She devoured everything she could lay her hands on: books, magazines and newspapers. 无论是书、杂志，还是报纸，只要能弄得到，她都看得津津有味。
• The lions devoured a zebra in a short time. 狮子一会儿就吃掉了一匹斑马。

344 Portuguese   

n.葡萄牙人；葡萄牙语

参考例句：

• They styled their house in the Portuguese manner.他们仿照葡萄牙的风格设计自己的房子。
• Her family is Portuguese in origin.她的家族是葡萄牙血统。

345 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。

346 ferocious   

adj.凶猛的，残暴的，极度的，十分强烈的

参考例句：

• The ferocious winds seemed about to tear the ship to pieces.狂风仿佛要把船撕成碎片似的。
• The ferocious panther is chasing a rabbit.那只凶猛的豹子正追赶一只兔子。

347 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。

348 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。

349 hatreds   

n.仇恨，憎恶( hatred的名词复数 )；厌恶的事

参考例句：

• He had more enimies and hatreds than anyone could easily guess from his thoughtful expression. 从他的思想表达方式难以被人猜透来看，他的敌人和仇家是不会多的。 来自辞典例句
• All the old and recent hatreds come to his mind. 旧恨新仇一起涌上他的心头。 来自互联网

350 glands   

n.腺( gland的名词复数 )

参考例句：

• a snake's poison glands 蛇的毒腺
• the sebaceous glands in the skin 皮脂腺

351 pouch   

n.小袋，小包，囊状袋；vt.装...入袋中，用袋运输；vi.用袋送信件

参考例句：

• He was going to make a tobacco pouch out of them. 他要用它们缝制一个烟草袋。
• The old man is always carrying a tobacco pouch with him.这老汉总是随身带着烟袋。

352 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。

353 jaw   

n.颚，颌，说教，流言蜚语；v.喋喋不休，教训

参考例句：

• He delivered a right hook to his opponent's jaw.他给了对方下巴一记右钩拳。
• A strong square jaw is a sign of firm character.强健的方下巴是刚毅性格的标志。

354 ruminating   

v.沉思( ruminate的现在分词 )；反复考虑；反刍；倒嚼

参考例句：

• He sat there ruminating and picking at the tablecloth. 他坐在那儿沉思，轻轻地抚弄着桌布。 来自《简明英汉词典》
• He is ruminating on what had happened the day before. 他在沉思前一天发生的事情。 来自《简明英汉词典》

355 domesticated   

adj.喜欢家庭生活的；（指动物）被驯养了的v.驯化( domesticate的过去式和过去分词 )

参考例句：

• He is thoroughly domesticated and cooks a delicious chicken casserole. 他精于家务，烹制的砂锅炖小鸡非常可口。 来自《简明英汉词典》
• The donkey is a domesticated form of the African wild ass. 驴是非洲野驴的一种已驯化的品种。 来自《简明英汉词典》

356 hoarse   

adj.嘶哑的，沙哑的

参考例句：

• He asked me a question in a hoarse voice.他用嘶哑的声音问了我一个问题。
• He was too excited and roared himself hoarse.他过于激动，嗓子都喊哑了。

357 plentiful   

adj.富裕的，丰富的

参考例句：

• Their family has a plentiful harvest this year.他们家今年又丰收了。
• Rainfall is plentiful in the area.这个地区雨量充足。

358 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。

359 dreads   

n.恐惧，畏惧( dread的名词复数 )；令人恐惧的事物v.害怕，恐惧，担心( dread的第三人称单数 )

参考例句：

• The little boy dreads going to bed in the dark. 这孩子不敢在黑暗中睡觉。 来自《简明英汉词典》
• A burnt child dreads the fire. [谚]烧伤过的孩子怕火（惊弓之鸟，格外胆小）。 来自《现代英汉综合大词典》

360 stifled   

（使）窒息， （使）窒闷( stifle的过去式和过去分词 )； 镇压，遏制； 堵

参考例句：

• The gas stifled them. 煤气使他们窒息。
• The rebellion was stifled. 叛乱被镇压了。

361 tusks   

n.（象等动物的）长牙( tusk的名词复数 )；獠牙；尖形物；尖头

参考例句：

• The elephants are poached for their tusks. 为获取象牙而偷猎大象。
• Elephant tusks, monkey tails and salt were used in some parts of Africa. 非洲的一些地区则使用象牙、猴尾和盐。 来自英语晨读30分（高一）

362 peculiarity   

n.独特性，特色；特殊的东西；怪癖

参考例句：

• Each country has its own peculiarity.每个国家都有自己的独特之处。
• The peculiarity of this shop is its day and nigth service.这家商店的特点是昼夜服务。

363 canine   

adj.犬的，犬科的

参考例句：

• The fox is a canine animal.狐狸是犬科动物。
• Herbivorous animals have very small canine teeth,or none.食草动物的犬牙很小或者没有。

364 provincial   

adj.省的，地方的；n．外省人，乡下人

参考例句：

• City dwellers think country folk have provincial attitudes.城里人以为乡下人思想迂腐。
• Two leading cadres came down from the provincial capital yesterday.昨天从省里下来了两位领导干部。

365 orthography   

n.拼字法，拼字式

参考例句：

• In dictionaries,words are listed according to their orthography.在词典中，词是按照字母拼写顺序排列的。
• American and English orthography are very much alike.美语与英语的拼字方法非常相像。

366 systematic   

adj.有系统的，有计划的，有方法的

参考例句：

• The way he works isn't very systematic.他的工作不是很有条理。
• The teacher made a systematic work of teaching.这个教师进行系统的教学工作。

367 disdain   

n.鄙视，轻视；v.轻视，鄙视，不屑

参考例句：

• Some people disdain labour.有些人轻视劳动。
• A great man should disdain flatterers.伟大的人物应鄙视献媚者。

368 zoology   

n.动物学，生态

参考例句：

• I would like to brush up my zoology.我想重新温习一下动物学。
• The library didn't stock zoology textbooks.这家图书馆没有动物学教科书。

369 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。

370 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。

371 venom   

n.毒液，恶毒，痛恨

参考例句：

• The snake injects the venom immediately after biting its prey.毒蛇咬住猎物之后马上注入毒液。
• In fact,some components of the venom may benefit human health.事实上，毒液的某些成分可能有益于人类健康。

372 torment   

n.折磨；令人痛苦的东西(人)；vt.折磨；纠缠

参考例句：

• He has never suffered the torment of rejection.他从未经受过遭人拒绝的痛苦。
• Now nothing aggravates me more than when people torment each other.没有什么东西比人们的互相折磨更使我愤怒。

373 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。

374 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》

375 abounded   

v.大量存在，充满，富于( abound的过去式和过去分词 )

参考例句：

• Get-rich-quick schemes abounded, and many people lost their savings. “生财之道”遍地皆是，然而许多人一生积攒下来的钱转眼之间付之东流。 来自英汉非文学 - 政府文件
• Shoppers thronged the sidewalks. Olivedrab and navy-blue uniforms abounded. 人行道上逛商店的人摩肩接踵，身着草绿色和海军蓝军装的军人比比皆是。 来自辞典例句

376 shun   

vt.避开，回避，避免

参考例句：

• Materialists face truth,whereas idealists shun it.唯物主义者面向真理，唯心主义者则逃避真理。
• This extremist organization has shunned conventional politics.这个极端主义组织有意避开了传统政治。

377 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》

378 fortitude   

n.坚忍不拔；刚毅

参考例句：

• His dauntless fortitude makes him absolutely fearless.他不屈不挠的坚韧让他绝无恐惧。
• He bore the pain with great fortitude.他以极大的毅力忍受了痛苦。

379 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。

380 celestial   

adj.天体的；天上的

参考例句：

• The rosy light yet beamed like a celestial dawn.玫瑰色的红光依然象天上的朝霞一样绚丽。
• Gravity governs the motions of celestial bodies.万有引力控制着天体的运动。

381 gnats   

n.叮人小虫( gnat的名词复数 )

参考例句：

• He decided that he might fire at all gnats. 他决定索性把鸡毛蒜皮都摊出来。 来自辞典例句
• The air seemed to grow thick with fine white gnats. 空气似乎由于许多白色的小虫子而变得浑浊不堪。 来自辞典例句

382 populous   

adj.人口稠密的，人口众多的

参考例句：

• London is the most populous area of Britain.伦敦是英国人口最稠密的地区。
• China is the most populous developing country in the world.中国是世界上人口最多的发展中国家。

383 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。

384 inferno   

n.火海；地狱般的场所

参考例句：

• Rescue workers fought to get to victims inside the inferno.救援人员奋力营救大火中的受害者。
• The burning building became an inferno.燃烧着的大楼成了地狱般的地方。

385 grottos   

n.（吸引人的）岩洞，洞穴，（人挖的）洞室( grotto的名词复数 )

参考例句：

• UNDERGROUND Under water grottos, caverns Filled with apes That eat figs. 在水帘洞里，挤满了猿争吃无花果。 来自互联网
• Today, some7, 000 caves with 492 grottos remain extant in Dunhuang. 如今，在砾岩峭壁上，有洞穴七千余处，492窟。 来自互联网

386 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。

387 torments   

（肉体或精神上的）折磨，痛苦( torment的名词复数 )； 造成痛苦的事物[人]

参考例句：

• He released me from my torments. 他解除了我的痛苦。
• He suffered torments from his aching teeth. 他牙痛得难受。

388 infancy   

n.婴儿期；幼年期；初期

参考例句：

• He came to England in his infancy.他幼年时期来到英国。
• Their research is only in its infancy.他们的研究处于初级阶段。

389 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！

390 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

391 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。

392 adverse   

adj.不利的；有害的；敌对的，不友好的

参考例句：

• He is adverse to going abroad.他反对出国。
• The improper use of medicine could lead to severe adverse reactions.用药不当会产生严重的不良反应。

393 larvae   

n.幼虫

参考例句：

• Larvae are parasitic on sheep.幼虫寄生在绵羊的身上。
• The larvae prey upon small aphids.这种幼虫以小蚜虫为食。

394 swarm   

n.(昆虫)等一大群；vi.成群飞舞；蜂拥而入

参考例句：

• There is a swarm of bees in the tree.这树上有一窝蜜蜂。
• A swarm of ants are moving busily.一群蚂蚁正在忙碌地搬家。

395 vein   

n.血管，静脉；叶脉，纹理；情绪；vt.使成脉络

参考例句：

• The girl is not in the vein for singing today.那女孩今天没有心情唱歌。
• The doctor injects glucose into the patient's vein.医生把葡萄糖注射入病人的静脉。

396 proboscis   

n.（象的）长鼻

参考例句：

• Its proboscis has got stuck to a lot of pollen.它的喙上粘了很多花粉。
• It hovers in front of the flower,using its proboscis to look for nectar. 它在兰花前面飞来飞去, 用喙寻找花蜜.

397 twilight   

n.暮光，黄昏；暮年，晚期，衰落时期

参考例句：

• Twilight merged into darkness.夕阳的光辉融于黑暗中。
• Twilight was sweet with the smell of lilac and freshly turned earth.薄暮充满紫丁香和新翻耕的泥土的香味。

398 fatigued   

adj. 疲乏的

参考例句：

• The exercises fatigued her. 操练使她感到很疲乏。
• The President smiled, with fatigued tolerance for a minor person's naivety. 总统笑了笑，疲惫地表现出对一个下级人员的天真想法的宽容。

399 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”。

400 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。

401 blindfold   

vt.蒙住…的眼睛；adj.盲目的；adv.盲目地；n.蒙眼的绷带[布等]； 障眼物，蒙蔽人的事物

参考例句：

• They put a blindfold on a horse.他们给马蒙上遮眼布。
• I can do it blindfold.我闭着眼睛都能做。

402 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》

403 voracious   

adj.狼吞虎咽的，贪婪的

参考例句：

• She's a voracious reader of all kinds of love stories.什么样的爱情故事她都百看不厌。
• Joseph Smith was a voracious book collector.约瑟夫·史密斯是个如饥似渴的藏书家。

404 fully   

adv.完全地，全部地，彻底地；充分地

参考例句：

• The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气，然后全部呼出。
• They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。

405 tormenting   

使痛苦的，使苦恼的

参考例句：

• He took too much pleasure in tormenting an ugly monster called Caliban. 他喜欢一味捉弄一个名叫凯列班的丑妖怪。
• The children were scolded for tormenting animals. 孩子们因折磨动物而受到责骂。

406 variegated   

adj.斑驳的，杂色的

参考例句：

• This plant has beautifully variegated leaves.这种植物的叶子色彩斑驳，非常美丽。
• We're going to grow a variegated ivy up the back of the house.我们打算在房子后面种一棵杂色常春藤。

407 antennae   

n.天线；触角

参考例句：

• Sometimes a creature uses a pair of antennae to swim.有时某些动物使用其一对触须来游泳。
• Cuba's government said that Cubans found watching American television on clandestine antennae would face three years in jail.古巴政府说那些用秘密天线收看美国电视的古巴人将面临三年监禁。

408 recapitulating   

v.总结，扼要重述( recapitulate的现在分词 )

参考例句：

• We begin by recapitulating the complete list of equations for a mixed boundary-initial value problem. 开始时，我们重新列出适用于混合边值问题的那些方程的完备表。 来自辞典例句
• Methods: Reviewing the related literatures and abroad, and recapitulating them. 方法：查阅大量国内外的相关文献，进行综述。 来自互联网

409 swarms   

蜂群，一大群( swarm的名词复数 )

参考例句：

• They came to town in swarms. 他们蜂拥来到城里。
• On June the first there were swarms of children playing in the park. 6月1日那一天，这个公园里有一群群的孩子玩耍。

410 trifling   

adj.微不足道的；没什么价值的

参考例句：

• They quarreled over a trifling matter.他们为这种微不足道的事情争吵。
• So far Europe has no doubt, gained a real conveniency,though surely a very trifling one.直到现在为止,欧洲无疑地已经获得了实在的便利，不过那确是一种微不足道的便利。

411 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》

412 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。

413 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。

414 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。

415 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。

416 blisters   

n.水疱( blister的名词复数 )；水肿；气泡

参考例句：

• My new shoes have made blisters on my heels. 我的新鞋把我的脚跟磨起泡了。 来自《现代汉英综合大词典》
• His new shoes raised blisters on his feet. 他的新鞋把他的脚磨起了水疱。 来自《简明英汉词典》

417 inflamed   

adj.发炎的，红肿的v.（使）变红，发怒，过热( inflame的过去式和过去分词 )

参考例句：

• His comments have inflamed teachers all over the country. 他的评论激怒了全国教师。
• Her joints are severely inflamed. 她的关节严重发炎。 来自《简明英汉词典》

418 epidermis   

n.表皮

参考例句：

• The external layer of skin is called the epidermis.皮的外层叫表皮。
• There is a neoplasm originating in his leg's epidermis.他的腿上有个生长在表皮上的肿瘤。

419 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。

420 plaza   

n.广场，市场

参考例句：

• They designated the new shopping centre York Plaza.他们给这个新购物中心定名为约克购物中心。
• The plaza is teeming with undercover policemen.这个广场上布满了便衣警察。

421 chambers   

n.房间( chamber的名词复数 )；（议会的）议院；卧室；会议厅

参考例句：

• The body will be removed into one of the cold storage chambers. 尸体将被移到一个冷冻间里。 来自《简明英汉词典》
• Mr Chambers's readable book concentrates on the middle passage: the time Ransome spent in Russia. Chambers先生的这本值得一看的书重点在中间：Ransome在俄国的那几年。 来自互联网

422 stagnated   

v.停滞，不流动，不发展( stagnate的过去式和过去分词 )

参考例句：

• The balloting had stagnated, he couldn't win. 投票工作陷于停顿，他不能得胜。 来自辞典例句
• His mind has stagnated since his retirement. 他退休后头脑迟钝了。 来自辞典例句

423 feverish   

adj.发烧的，狂热的，兴奋的

参考例句：

• He is too feverish to rest.他兴奋得安静不下来。
• They worked with feverish haste to finish the job.为了完成此事他们以狂热的速度工作着。

424 infinitely   

adv.无限地，无穷地

参考例句：

• There is an infinitely bright future ahead of us.我们有无限光明的前途。
• The universe is infinitely large.宇宙是无限大的。

425 alcoholic   

adj.（含）酒精的，由酒精引起的；n.酗酒者

参考例句：

• The alcoholic strength of brandy far exceeds that of wine.白兰地的酒精浓度远远超过葡萄酒。
• Alcoholic drinks act as a poison to a child.酒精饮料对小孩犹如毒药。

426 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。

427 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。

428 accustoming   

v.（使）习惯于( accustom的现在分词 )

参考例句：

429 tributary   

n.支流；纳贡国；adj.附庸的；辅助的；支流的

参考例句：

• There was a tributary road near the end of the village.村的尽头有条岔道。
• As the largest tributary of Jinsha river,Yalong river is abundant in hydropower resources.雅砻江是金沙江的最大支流，水力资源十分丰富。

430 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。

431 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。

432 penetrating   

adj.（声音）响亮的，尖锐的adj.（气味）刺激的adj.（思想）敏锐的，有洞察力的

参考例句：

• He had an extraordinarily penetrating gaze. 他的目光有股异乎寻常的洞察力。
• He examined the man with a penetrating gaze. 他以锐利的目光仔细观察了那个人。

433 voracity   

n.贪食，贪婪

参考例句：

• Their voracity is legendary and even the most hardened warriors cannot repress a shiver if one speaks about them. 他们的贪食是传奇性的，甚至强壮的战士也会因为提起他们而无法抑制的颤抖。 来自《简明英汉词典》
• He ate with the voracity of a starving man. 他饿鬼似的贪婪地吃着。 来自互联网

434 tranquilly   

adv. 宁静地

参考例句：

• He took up his brush and went tranquilly to work. 他拿起刷子，一声不响地干了起来。
• The evening was closing down tranquilly. 暮色正在静悄悄地笼罩下来。

435 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》

436 isthmus   

n.地峡

参考例句：

• North America is connected with South America by the Isthmus of Panama.巴拿马海峡把北美同南美连接起来。
• The north and south of the island are linked by a narrow isthmus.岛的北部和南部由一条狭窄的地峡相连。

437 scorpion   

n.蝎子，心黑的人，蝎子鞭

参考例句：

• The scorpion has a sting that can be deadly.蝎子有可以致命的螫针。
• The scorpion has a sting that can be deadly.蝎子有可以致命的螫针。

438 torpor   

n.迟钝；麻木；（动物的）冬眠

参考例句：

• The sick person gradually falls into a torpor.病人逐渐变得迟钝。
• He fell into a deep torpor.他一下子进入了深度麻痹状态。

439 stammers   

n.口吃，结巴( stammer的名词复数 )v.结巴地说出( stammer的第三人称单数 )

参考例句：

• She stammers when she feels nervous. 她紧张时就口吃。 来自《简明英汉词典》
• The little child stammers in the presence of strangers. 那小孩在陌生人面前说话就结巴。 来自辞典例句

440 scarlet   

n.深红色，绯红色，红衣；adj.绯红色的

参考例句：

• The scarlet leaves of the maples contrast well with the dark green of the pines.深红的枫叶和暗绿的松树形成了明显的对比。
• The glowing clouds are growing slowly pale,scarlet,bright red,and then light red.天空的霞光渐渐地淡下去了，深红的颜色变成了绯红，绯红又变为浅红。

441 stimulate   

vt.刺激，使兴奋；激励，使…振奋

参考例句：

• Your encouragement will stimulate me to further efforts.你的鼓励会激发我进一步努力。
• Success will stimulate the people for fresh efforts.成功能鼓舞人们去作新的努力。

442 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。

443 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。

444 softened   

（使）变软( soften的过去式和过去分词 )； 缓解打击； 缓和； 安慰

参考例句：

• His smile softened slightly. 他的微笑稍柔和了些。
• The ice cream softened and began to melt. 冰淇淋开始变软并开始融化。

445 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。

446 caustic   

adj.刻薄的，腐蚀性的

参考例句：

• He opened his mouth to make a caustic retort.他张嘴开始进行刻薄的反击。
• He enjoys making caustic remarks about other people.他喜欢挖苦别人。

447 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。

448 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。

449 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。

450 commotions   

n.混乱，喧闹，骚动( commotion的名词复数 )

参考例句：

451 gastric   

adj.胃的

参考例句：

• Miners are a high risk group for certain types of gastric cancer.矿工是极易患某几种胃癌的高风险人群。
• That was how I got my gastric trouble.我的胃病就是这么得的。

452 digestion   

n.消化，吸收

参考例句：

• This kind of tea acts as an aid to digestion.这种茶可助消化。
• This food is easy of digestion.这食物容易消化。

453 profuse   

adj.很多的，大量的，极其丰富的

参考例句：

• The hostess is profuse in her hospitality.女主人招待得十分周到。
• There was a profuse crop of hair impending over the top of his face.一大绺头发垂在他额头上。

454 perspiration   

n.汗水；出汗

参考例句：

• It is so hot that my clothes are wet with perspiration.天太热了，我的衣服被汗水湿透了。
• The perspiration was running down my back.汗从我背上淌下来。

455 impatience   

n.不耐烦，急躁

参考例句：

• He expressed impatience at the slow rate of progress.进展缓慢，他显得不耐烦。
• He gave a stamp of impatience.他不耐烦地跺脚。

456 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

457 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。

458 condemned   

adj. 被责难的, 被宣告有罪的 动词condemn的过去式和过去分词

参考例句：

• He condemned the hypocrisy of those politicians who do one thing and say another. 他谴责了那些说一套做一套的政客的虚伪。
• The policy has been condemned as a regressive step. 这项政策被认为是一种倒退而受到谴责。

459 distend   

vt./vi.（使）扩大，（使）扩张

参考例句：

• The stomachs of starving people often distend.饥民的腹部常鼓得大大的。
• The patients were asked to micturate to distend the urethra.采用患者自行排尿方法充盈尿道。

460 distended   

v.（使）膨胀，肿胀( distend的过去式和过去分词 )

参考例句：

• starving children with huge distended bellies 鼓着浮肿肚子的挨饿儿童
• The balloon was distended. 气球已膨胀。 来自《现代英汉综合大词典》

461 hoops   

n.箍( hoop的名词复数 )；（篮球）篮圈；（旧时儿童玩的）大环子；（两端埋在地里的）小铁弓

参考例句：

• a barrel bound with iron hoops 用铁箍箍紧的桶
• Hoops in Paris were wider this season and skirts were shorter. 在巴黎，这个季节的裙圈比较宽大，裙裾却短一些。 来自飘（部分）

462 suffocated   

（使某人）窒息而死( suffocate的过去式和过去分词 )； （将某人）闷死； 让人感觉闷热； 憋气

参考例句：

• Many dogs have suffocated in hot cars. 许多狗在热烘烘的汽车里给闷死了。
• I nearly suffocated when the pipe of my breathing apparatus came adrift. 呼吸器上的管子脱落时，我差点给憋死。

463 dissecting   

v.解剖（动物等）( dissect的现在分词 )；仔细分析或研究

参考例句：

• Another group was dissecting a new film showing locally. 另外一批人正在剖析城里上演的一部新电影。 来自辞典例句
• Probe into Dissecting Refraction Method Statics Processing under Complicated Surface Conditions. 不同地表条件下土壤侵蚀的坡度效应。 来自互联网

464 fumes   

n.(强烈而刺激的)气味，气体

参考例句：

• The health of our children is being endangered by exhaust fumes. 我们孩子们的健康正受到排放出的废气的损害。
• Exhaust fumes are bad for your health. 废气对健康有害。

465 satiety   

n.饱和；(市场的)充分供应

参考例句：

• There is no satiety in study.学无止境。
• Their presence in foods induces satiety at meal time.它们在食物中的存在诱导进餐时的满足感。

466 stimulating   

adj.有启发性的，能激发人思考的

参考例句：

• shower gel containing plant extracts that have a stimulating effect on the skin 含有对皮肤有益的植物精华的沐浴凝胶
• This is a drug for stimulating nerves. 这是一种兴奋剂。

467 pricks   

刺痛( prick的名词复数 )； 刺孔； 刺痕； 植物的刺

参考例句：

• My skin pricks sometimes. 我的皮肤有时感到刺痛。
• You must obey the rule. It is useless for you to kick against the pricks. 你必须遵守规定，对抗对你是无益的。

468 diluted   

无力的，冲淡的

参考例句：

• The paint can be diluted with water to make a lighter shade. 这颜料可用水稀释以使色度淡一些。
• This pesticide is diluted with water and applied directly to the fields. 这种杀虫剂用水稀释后直接施用在田里。

469 incurred   

[医]招致的，遭受的； incur的过去式

参考例句：

• She had incurred the wrath of her father by marrying without his consent 她未经父亲同意就结婚，使父亲震怒。
• We will reimburse any expenses incurred. 我们将付还所有相关费用。

470 concealing   

v.隐藏，隐瞒，遮住( conceal的现在分词 )

参考例句：

• Despite his outward display of friendliness, I sensed he was concealing something. 尽管他表现得友善，我还是感觉到他有所隐瞒。 来自《简明英汉词典》
• SHE WAS BREAKING THE COMPACT, AND CONCEALING IT FROM HIM. 她违反了他们之间的约定，还把他蒙在鼓里。 来自英汉文学 - 三万元遗产

471 rendering   

n.表现，描写

参考例句：

• She gave a splendid rendering of Beethoven's piano sonata.她精彩地演奏了贝多芬的钢琴奏鸣曲。
• His narrative is a super rendering of dialect speech and idiom.他的叙述是方言和土语最成功的运用。

472 termites   

n.白蚁( termite的名词复数 )

参考例句：

• Termites are principally tropical in distribution. 白蚁主要分布在热带地区。 来自辞典例句
• This spray will exterminate the termites. 这种喷剂能消灭白蚁。 来自辞典例句

473 surmounted   

战胜( surmount的过去式和过去分词 )； 克服（困难）； 居于…之上； 在…顶上

参考例句：

• She was well aware of the difficulties that had to be surmounted. 她很清楚必须克服哪些困难。
• I think most of these obstacles can be surmounted. 我认为这些障碍大多数都是可以克服的。

474 frightful   

adj.可怕的；讨厌的

参考例句：

• How frightful to have a husband who snores!有一个发鼾声的丈夫多讨厌啊！
• We're having frightful weather these days.这几天天气坏极了。

475 utterly   

adv.完全地，绝对地

参考例句：

• Utterly devoted to the people,he gave his life in saving his patients.他忠于人民，把毕生精力用于挽救患者的生命。
• I was utterly ravished by the way she smiled.她的微笑使我完全陶醉了。

476 posterity   

n.后裔，子孙，后代

参考例句：

• Few of his works will go down to posterity.他的作品没有几件会流传到后世。
• The names of those who died are recorded for posterity on a tablet at the back of the church.死者姓名都刻在教堂后面的一块石匾上以便后人铭记。

477 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。

478 slumbers   

睡眠，安眠( slumber的名词复数 )

参考例句：

• His image traversed constantly her restless slumbers. 他的形象一再闯进她的脑海，弄得她不能安睡。
• My Titan brother slumbers deep inside his mountain prison. Go. 我的泰坦兄弟就被囚禁在山脉的深处。

479 zeal   

n.热心，热情，热忱

参考例句：

• Revolutionary zeal caught them up,and they joined the army.革命热情激励他们，于是他们从军了。
• They worked with great zeal to finish the project.他们热情高涨地工作，以期完成这个项目。

480 alpine   

adj.高山的；n.高山植物

参考例句：

• Alpine flowers are abundant there.那里有很多高山地带的花。
• Its main attractions are alpine lakes and waterfalls .它以高山湖泊和瀑布群为主要特色。

481 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。

482 renewal   

adj.(契约)延期，续订，更新，复活，重来

参考例句：

• Her contract is coming up for renewal in the autumn.她的合同秋天就应该续签了。
• Easter eggs symbolize the renewal of life.复活蛋象征新生。

483 gnaw   

v.不断地啃、咬；使苦恼，折磨

参考例句：

• Dogs like to gnaw on a bone.狗爱啃骨头。
• A rat can gnaw a hole through wood.老鼠能啃穿木头。