Book,  Paragraph

 1   V,  1|         only other animal whose hairs whiten visibly in old age.
 2   V,  3|      animal among the vivipara. Hairs differ in respect of hardness
 3   V,  3|    moisture evaporates. Now the hairs or their analogue are not
 4   V,  3|       them, and therefore thick hairs arise from a thick skin
 5   V,  3|       is rarer and thicker, the hairs are thick because of the
 6   V,  3|        dries up quickly and the hairs do not gain in size, but
 7   V,  3|        the same reason also the hairs of the head in man are thickest,
 8   V,  3|        porous.~The cause of the hairs being long or short depends
 9   V,  3|         And for this reason the hairs of the head are longest
10   V,  3|      abundance of moisture.~The hairs become straight or curly
11   V,  3|   straight-haired; for in these hairs the moisture advances as
12   V,  3|    pores are the finer must the hairs be. Hence the class of sheep
13   V,  3|        class of sheep have such hairs (for wool is only a multitude
14   V,  3|     wool is only a multitude of hairs).~There are some animals
15   V,  3|       is from this that spines, hairs, and such things are formed;
16   V,  3|         animals grow older, the hairs become harder in those which
17   V,  3|      harder in those which have hairs, and the feathers and scales
18   V,  3|         and so are feathers and hairs by those animals that have
19   V,  3|    growing and losing feathers, hairs, or leaves respectively.
20   V,  4|      what is called leprosy the hairs become white; on the contrary,
21   V,  4|         on the contrary, if the hairs are white the whiteness
22   V,  4|          The reason is that the hairs grow out of skin; if, then,
23   V,  4|        jest when they call grey hairs "mould of old age" and For
24   V,  4|        this is so is this: grey hairs have often grown on men
25   V,  4|      disease, and later on dark hairs instead of them after restoration
26   V,  4|       nutriment causes the grey hairs. But when men have recovered
27   V,  5|      has said: "where the first hairs grow on the skull of horses,
28   V,  5|  moisture easily flows to these hairs because of the thinness
29   V,  5|       they go grey. The reddish hairs go grey sooner than the
30   V,  5|     shown by the fact that some hairs grow grey from the first,
31   V,  5|       in a withered state. Many hairs also whiten at the tip,
32   V,  5|        thinnest parts.~When the hairs of other animals are white,
33   V,  5| consequence of a mixture of the hairs, it is found to be white
34   V,  5|      not strength to change the hairs; on the contrary the skin
35   V,  5|         sun and wind, while the hairs do not change along with
36   V,  5|      thing grows, therefore the hairs change according to the
37   V,  6|      from which come into being hairs and feathers and skins.~
38   V,  6|         So much for colours and hairs.~