There are some persons who are of opinion that the fineness of the wit does not depend upon the thinness of the blood, but that animals are more or less stupid in proportion to the skin or other coverings of the body, as the oyster and the tortoise, for instance: that the hide of the ox and the bristles of the hog, in fact, offer a resistance to the fine and penetrating powers of the air, and leave no passage for its transmission in a pure and liquid state. The same, they say, is the case, too, with men, when the skin is very thick or callous, and so excludes the air. Just as if, indeed, the crocodile was not equally remarkable for the hardness of its skin and its extreme cunning.
CHAP. 93.—THE HIDE OF ANIMALS.
The hide, too, of the hippopotamus is so thick, that lances,[319] even, are turned from it, and yet this animal has the intelligence to administer certain medicaments to itself. The hide, too, of the elephant makes bucklers that are quite impenetrable, and yet to it is ascribed a degree of intelligence superior to that of any quadruped. The skin itself is entirely devoid of sensation, and more particularly that of the head; wherever it is found alone, and unaccompanied with flesh, if wounded, it will not unite, as in the cheek and on the eyelid,[320] for instance.
CHAP. 94.—THE HAIR AND THE COVERING OF THE SKIN.
Those animals which are viviparous, have hair; those which are oviparous, have feathers, scales, or a shell, like the tortoise; or else a purple skin, like the serpent. The lower part of all feathers is hollow; if cut, they will not grow again, but if pulled out, they will shoot afresh. Insects fly by the aid of a frail membrane; the wings of the fish[321] called the “swallow” are moistened in the sea, while those of the bat which frequents our houses are dry; the wings of this last animal have certain articulations as well. The hairs that issue from a thick skin are rough, while those on females are of a finer quality. Those found on the horse’s mane are more abundant, which is the case also with the shoulders of the lion. The dasypus has hair in the inside of the mouth even and under the feet, two features which Trogus has also attributed to the hare; from which the same author concludes that hairy men are the most prone to lust. The most hairy of all animals is the hare. Man is the only creature that has hair as the mark of puberty; and a person who is devoid of this, whether male or female, is sure to be sterile. The hair of man is partly born with him, and in part produced after his birth. The last kind of hair will not grow upon eunuchs, though that which has been born with them does not fall off; which is the case also with women, in a great degree. Still however, there have been women known to be afflicted with falling off of the hair, just as some are to be seen with a fine down on the face, after the cessation of the menstrual discharge. In some men the hair that mostly shoots forth after birth will not grow spontaneously. The hair of quadrupeds comes off every year, and grows again. That of the head in man grows the fastest, and next to it the hair of the beard. When cut, the hairs shoot, not from the place where they have been cut, as is the case with grass, but at the root. The hair grows quickly in certain diseases, phthisis more particularly; it grows also with rapidity in old age, and on the body after death. In persons of a libidinous tendency the hair that is produced at birth falls off more speedily, while that which is afterwards produced grows with the greatest rapidity. In quadrupeds, the hair grows thicker in old age; but on those with wool, it becomes thinner. Those quadrupeds which have thick hair on the back, have the belly quite smooth. From the hides of oxen, and that of the bull more especially, glue is extracted by boiling.
CHAP. 95.—THE PAPS: BIRDS THAT HAVE PAPS. REMARKABLE FACTS CONNECTED WITH THE DUGS OF ANIMALS.
Man is the only male among animals that has nipples, all the rest having mere marks only in place of them. Among female animals even, the only ones that have mammæ on the breast are those which can nurture their young. No oviparous animal has mammæ, and those only have milk that are viviparous; the bat being the only winged animal that has it. As for the stories that they tell, about the screech-owl ejecting milk from its teats upon the lips of infants, I look upon it as utterly fabulous: from ancient times the name “strix,”[322] I am aware, has been employed in maledictions, but I do not think it is well ascertained what bird is really meant by that name.
(40.) The female ass is troubled with pains in the teats after it has foaled, and it is for that reason that at the end of six months it weans its young; while the mare suckles its young for nearly the whole year. The solid-hoofed animals do not bear more than two young ones at a time: they all of them have two paps, and nowhere but between the hind legs. Animals with cloven feet and with horns, such as the cow, for instance, have four paps, similarly situate, sheep and goats two. Those which produce a more numerous progeny, and those which have toes on the feet, have a greater number of paps distributed in a double row all along the belly, such as the sow, for instance; the better sorts have twelve, the more common ones two less: the same is the case also with the female of the dog. Other animals, again, have four paps situate in the middle of the belly, as the female panther; others, again, two only, as the lioness. The female elephant has two only, situate between the shoulders, and those not in the breast, but without it, and hidden in the arm-pits: none of the animals which have toes have the paps between the hind legs. The sow presents the first teat to the first-born in each farrow, the first teat being the one that is situate nearest to the throat. Each pig, too, knows its own teat, according to the order in which it was born, and draws its nourishment from that and no other: if its own suckling, too, should happen to be withdrawn from any one of them, the pap will immediately dry up, and shrink back within the belly: if there should be only one pig left of all the farrow, that pap alone which has been assigned for its nutriment when born, will continue to hang down for the purpose of giving suck. The she-bear has four mammæ, the dolphin only two, at the bottom of the belly; they are not easily visible, and have a somewhat oblique direction: this is the only animal which gives suck while in motion. The balæna and sea-calf also suckle their young by teats.
CHAP. 96. (41.)—THE MILK: THE BIESTINGS. CHEESE; OF WHAT MILK CHEESE CANNOT BE MADE. RENNET; THE VARIOUS KINDS OF ALIMENT IN MILK.
The milk that is secreted in a woman before her seventh month is useless; but after that month, so long as the fœtus is healthy, the milk is wholesome: many women, indeed, are so full of milk, that it will flow not only from the mammæ, but exudes at the arm-pits even.[323] Camels continue in milk until they are pregnant again. Their milk, mixed in the proportion of one part to three of water, is considered a very pleasant beverage. The cow has no milk before it has calved, and that which immediately follows upon its bringing forth is known as the “colostra:”[324] if water is not mixed with it, it will coagulate, and assume the hardness of pumice. She-asses, as soon as they are pregnant, have milk in their udders; when the pasturage is rich, it is fatal to their young to taste the mother’s milk the first two days after birth; the kind of malady by which they are attacked is known by the name of “colostration.” Cheese cannot be made from the milk of animals which have teeth on either jaw, from the circumstance that their milk does not coagulate. The thinnest milk of all is that of the camel, and next to it that of the mare. The milk of the she-ass is the richest of all, so much so, indeed, that it is often used instead of rennet. Asses’ milk is also thought to be very efficacious in whitening the skin of females: at all events, Poppæa,[325] the wife of Domitius Nero, used always to have with her five hundred asses with foal, and used to bathe the whole of her body in their milk, thinking that it also conferred additional suppleness on the skin. All milk thickens by the action of fire, and becomes serous when exposed to cold. The milk of the cow produces more cheese than that of the goat: when equal in quantity, it will produce nearly twice the weight. The milk of animals which have more than four mammæ does not produce cheese; and that is the best which is made of the milk of those that have but two. The rennet of the fawn, the hare, and the kid is the most esteemed, but the best of all is that of the dasypus: this last acts as a specific for diarrhœa, that animal being the only one with teeth in both jaws, the rennet of which has that property. It is a remarkable circumstance, that the barbarous nations which subsist on milk have been for so many ages either ignorant of the merits of cheese, or else have totally disregarded it; and yet they understand how to thicken milk and form therefrom an acrid kind of liquid with a pleasant flavour, as well as a rich butter: this last is the foam[326] of milk, and is of a thicker consistency than the part which is known as the “serum.”[327] We ought not to omit that butter has certain of the properties of oil, and that it is used for an ointment among all barbarous nations, and among ourselves as well, for infants.