Book II chapter 4

What are called fibres are found in the blood of some animals but not of all. There are none, for instance, in the blood of deer and of roes¹; and for this reason the blood of such animals as these never coagulates. For one part of the blood consists mainly of water and therefore does not coagulate, this process occurring only in the other and earthy constituent², that is to say in the fibres, while the fluid part is evaporating.

Some at any rate of the animals with watery³ blood have a keener intellect than those whose blood is of an earthier nature. This is due not to the coldness of their blood, but rather to its thinness and purity; neither of which qualities belongs to the earthy matter. For the thinner and purer its fluid is, the more easily affected⁴ is an animal’s sensibility. Thus it is that some bloodless animals, notwithstanding their want of blood, are yet more intelligent than some among the sanguineous kinds. Such for instance, as already said, is the case with the bee and the tribe of ants, and whatever other animals there may be of a like nature. At the same time too great an excess of water makes animals timorous⁵. For fear chills the body; so that in animals whose heart contains so watery a mixture the way is prepared for the operation of this emotion. For water is congealed⁶ by cold. This also explains why bloodless animals are, as a general rule, more timorous than such as have blood, so that they remain motionless, when frightened, and discharge their excretions, and in some instances change colour. Such animals, on the other hand, as have thick and abundant fibres in their blood are of a more earthy nature, and of a choleric⁷ temperament⁸, and liable to bursts of passion. For anger is productive of heat; and solids, when they have been made hot, give off more heat than fluids. The fibres therefore, being earthy and solid, are turned into so many hot embers in the blood, like the embers in a vapour-bath, and cause ebullition in the fits of passion.

This explains why bulls and boars are so choleric and so passionate⁹. For their blood is exceedingly rich in fibres, and the bull’s at any rate coagulates more rapidly than that of any other animal. If these fibres, that is to say if the earthy constituents¹⁰ of which we are speaking, are taken out of the blood, the fluid that remains¹¹ behind will no longer coagulate; just as the watery residue¹² of mud will not coagulate after removal of the earth. But if the fibres are left the fluid coagulates, as also does mud, under the influence of cold. For when the heat is expelled by the cold, the fluid, as has been already stated, passes off with it by evaporation¹³, and the residue is dried up and solidified¹⁴, not by heat but by cold. So long, however, as the blood is in the body, it is kept fluid by animal heat.

The character of the blood affects both the temperament and the sensory¹⁵ faculties¹⁶ of animals in many ways. This is indeed what might reasonably be expected, seeing that the blood is the material of which the whole body is made. For nutriment supplies the material, and the blood is the ultimate nutriment. It makes then a considerable difference whether the blood be hot or cold, thin or thick, turbid¹⁷ or clear.

The watery part of the blood is serum¹⁸; and it is watery, either owing to its not being yet concocted¹⁹, or owing to its having become corrupted²⁰; so that one part of the serum is the resultant of a necessary process, while another part is material intended to serve for the formation of the blood.

1 roes   

n.獐( roe的名词复数 )；獐鹿；鱼卵；鱼精液

参考例句：

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

2 constituent   

n.选民；成分，组分；adj.组成的，构成的

参考例句：

• Sugar is the main constituent of candy.食糖是糖果的主要成分。
• Fibre is a natural constituent of a healthy diet.纤维是健康饮食的天然组成部分。

3 watery   

adj.有水的，水汪汪的；湿的，湿润的

参考例句：

• In his watery eyes there is an expression of distrust.他那含泪的眼睛流露出惊惶失措的神情。
• Her eyes became watery because of the smoke.因为烟熏，她的双眼变得泪汪汪的。

4 affected   

adj.不自然的，假装的

参考例句：

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

5 timorous   

adj.胆怯的，胆小的

参考例句：

• She is as timorous as a rabbit.她胆小得像只兔子。
• The timorous rabbit ran away.那只胆小的兔子跑开了。

6 congealed   

v.使凝结，冻结( congeal的过去式和过去分词 )；（指血）凝结

参考例句：

• The cold remains of supper had congealed on the plate. 晚餐剩下的冷饭菜已经凝结在盘子上了。
• The oil at last is congealed into a white fat. 那油最终凝结成了一种白色的油脂。 来自《简明英汉词典》

7 choleric   

adj.易怒的，性情暴躁的

参考例句：

• His pride and choleric temper were to ruin him.他生性高傲自恃而又易于发怒，这会毁了他的。
• He was affable at one moment,choleric the next.他一会儿还和蔼可亲，可一转眼就火冒三丈。

8 temperament   

n.气质，性格，性情

参考例句：

• The analysis of what kind of temperament you possess is vital.分析一下你有什么样的气质是十分重要的。
• Success often depends on temperament.成功常常取决于一个人的性格。

9 passionate   

adj.热情的，热烈的，激昂的，易动情的，易怒的，性情暴躁的

参考例句：

• He is said to be the most passionate man.据说他是最有激情的人。
• He is very passionate about the project.他对那个项目非常热心。

10 constituents   

n.选民( constituent的名词复数 )；成分；构成部分；要素

参考例句：

• She has the full support of her constituents. 她得到本区选民的全力支持。
• Hydrogen and oxygen are the constituents of water. 氢和氧是水的主要成分。 来自《简明英汉词典》

11 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。

12 residue   

n.残余，剩余，残渣

参考例句：

• Mary scraped the residue of food from the plates before putting them under water.玛丽在把盘子放入水之前先刮去上面的食物残渣。
• Pesticide persistence beyond the critical period for control leads to residue problems.农药一旦超过控制的临界期，就会导致残留问题。

13 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。

14 solidified   

（使）成为固体，（使）变硬，（使）变得坚固( solidify的过去式和过去分词 )； 使团结一致； 充实，巩固； 具体化

参考例句：

• Her attitudes solidified through privilege and habit. 由于特权和习惯使然，她的看法变得越来越难以改变。
• When threatened, he fires spheres of solidified air from his launcher! 当危险来临，他就会发射它的弹药！

15 sensory   

adj.知觉的，感觉的，知觉器官的

参考例句：

• Human powers of sensory discrimination are limited.人类感官分辨能力有限。
• The sensory system may undergo long-term adaptation in alien environments.感觉系统对陌生的环境可能经过长时期才能适应。

16 faculties   

n.能力( faculty的名词复数 )；全体教职员；技巧；院

参考例句：

• Although he's ninety, his mental faculties remain unimpaired. 他虽年届九旬，但头脑仍然清晰。
• All your faculties have come into play in your work. 在你的工作中，你的全部才能已起到了作用。 来自《简明英汉词典》

17 turbid   

adj.混浊的，泥水的，浓的

参考例句：

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

18 serum   

n.浆液，血清，乳浆

参考例句：

• The serum is available to the general public.一般公众均可获得血清。
• Untreated serum contains a set of 11 proteins called complement.未经处理的血清含有一组蛋白质，共11种，称为补体。

19 concocted   

v.将（尤指通常不相配合的）成分混合成某物( concoct的过去式和过去分词 )；调制；编造；捏造

参考例句：

• The soup was concocted from up to a dozen different kinds of fish. 这种汤是用多达十几种不同的鱼熬制而成的。
• Between them they concocted a letter. 他们共同策划写了一封信。 来自《简明英汉词典》

20 corrupted   

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

参考例句：

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