Those animals are looked upon as stupid and lumpish which have a hard, rigid heart, while those in which it is small are courageous, and those are timid which have it very large. The heart is the largest, in proportion to the body, in the mouse, the hare, the ass, the stag, the panther, the weasel, the hyæna, and all the animals, in fact, which are timid, or dangerous only from the effects of fear. In Paphlagonia the partridge has a double heart. In the heart of the horse and the ox there are bones sometimes found. It is said that the heart increases every year in man, and that two drachmæ in weight are added[272] yearly up to the fiftieth year, after which period it decreases yearly in a similar ratio; and that it is for this reason that men do not live beyond their hundredth year, the heart then failing them: this is the notion entertained by the Egyptians, whose custom it is to embalm the bodies of the dead, and so preserve them. It is said that men have been born with the heart covered with hair, and that such persons are excelled by none in valour and energy; such, for instance, as Aristomenes,[273] the Messenian, who slew three hundred Lacedæmonians. Being covered with wounds, and taken prisoner, he, on one occasion, made his escape by a narrow hole which he discovered[274] in the stone quarry where he was imprisoned, while in pursuit of a fox which had found that mode of exit. Being again taken prisoner, while his guards were fast asleep he rolled himself towards a fire close by, and, at the expense of his body, burnt off the cords by which he was bound. On being taken a third time, the Lacedæmonians opened his breast while he was still alive, and his heart was found covered with hair.
CHAP. 71.—WHEN THE CUSTOM WAS FIRST ADOPTED OF EXAMINING THE HEART IN THE INSPECTION OF THE ENTRAILS.
On an examination of the entrails, to find a certain fatty part on the top of the heart, is looked upon as a fortunate presage. Still, however the heart has not always been considered as forming a part of the entrails for this purpose. It was under Lucius Postumius Albinus, the King of the Sacrifices,[275] and after the 126th Olympiad, when King Pyrrhus had quitted Italy, that the aruspices began to examine the heart, as part of the consecrated entrails. The first day that the Dictator Cæsar appeared in public, clothed in purple, and sitting on a seat of gold, the heart was twice found wanting[276] when he sacrificed. From this circumstance has risen a great question among those who discuss matters connected with divination—whether it was possible for the victim to have lived without that organ, or whether it had lost it at the very moment[277] of its death. It is asserted that the heart cannot be burnt of those persons who die of the cardiac disease; and the same is said of those who die by poison. At all events, there is still in existence an oration pronounced by Vitellius,[278] in which he accuses Piso of this crime, and employs this alleged fact as one of his proofs, openly asserting that the heart of Germanicus Cæsar could not be burnt at the funeral pile, in consequence of his having been poisoned. On the other hand, the peculiar nature[279] of the disease under which Germanicus was labouring, was alleged in Piso’s defence.
CHAP. 72.—THE LUNGS: IN WHAT ANIMALS THEY ARE THE LARGEST, AND IN WHAT THE SMALLEST. ANIMALS WHICH HAVE NOTHING BUT LUNGS IN THE INTERIOR OF THE BODY. CAUSES WHICH PRODUCE EXTRAORDINARY SWIFTNESS IN ANIMALS.
Beneath the heart are the lungs, the laboratory in which the respiration is prepared. The use of these, is to draw in the air and then expel it; for which purpose their substance is of a spongy nature, and filled with cavernous holes. Some few among the aquatic animals have lungs, as we have already stated;[280] and among the rest of those which are oviparous, they are small, of a fungous nature, and containing no blood; hence it is, that these animals do not experience thirst. It is for the same reason also, that frogs and seals are able to remain so long under water. The tortoise, too, although it has lungs of remarkable size, and extending throughout the whole of the shell, is also equally destitute of blood. The smaller the lungs are in proportion to the body, the greater is the swiftness of the animal. It is in the chameleon that the lungs are the largest in proportion to the body; in which, in fact, it has no other viscera at all.[281]
CHAP. 73.—THE LIVER: IN WHAT ANIMALS, AND IN WHAT PART THERE ARE TWO LIVERS FOUND.
The liver is on the right side: in this part is situate what has been called the “head of the entrails,” and it is subject to considerable variations. No liver[282] at all was found in a victim which was sacrificed by M. Marcellus, about the period when he was killed in battle against Hannibal; while in a victim which was slain on the following day, a double liver was found. It was wanting, also, in a victim sacrificed by C. Marius, at Utica, and in one which was offered by the Emperor Caius[283] upon the calends of January,[284] on the occasion of his entering the year of the consulship in which he was slain: the same thing happened, also, to his successor, Claudius, in the month in which he was cut off[285] by poison. When the late Emperor Augustus was sacrificing at Spoletum, upon the first day of his entering on the imperial dignity, in six different victims the liver was found rolled over within itself, from the very lowest lobe; and the answer that was given by the diviners was to the effect that, in the course of the year, he would gain a twofold sway. It is of evil omen to find an incision in the head of the entrails, except on occasions of disquietude and alarm; for then it is significant of cutting all cares, and so putting an end to them. The hares that are found in the vicinity of Briletum[286] and Tharne, and in the Chersonnesus on the Propontis, have a double liver; but, what is very singular, if they are removed to another place, they will lose one of them.
CHAP. 74.—THE GALL; WHERE SITUATE, AND IN WHAT ANIMALS IT IS DOUBLE. ANIMALS WHICH HAVE NO GALL, AND OTHERS IN WHICH IT IS NOT SITUATE IN THE LIVER.
In the liver is the gall, which, however, does not exist in every animal. At Chalcis, in Eubœa, none of the cattle have it, while in the cattle of the Isle of Naxos, it is of extraordinary size, and double, so that to a stranger either of these facts would appear as good as a prodigy. The horse, the mule, the ass, the stag, the roe-buck, the wild boar, the camel, and the dolphin have no gall, but some kinds of rats and mice have it. Some few men are without it, and such persons enjoy robust health and a long life. There are some authors who say that the gall exists in the horse, not in the liver, but in the paunch, and that in the stag it is situate either in the tail or the intestines; and that hence it is, that those parts are so bitter that dogs will not touch them. The gall, in fact, is nothing else but the worst parts of the blood purged off, and for this reason it is that it is so bitter: at all events, it is a well-known fact, that no animal has a liver unless it has blood as well. The liver receives the blood from the heart, to which it is united, and then disperses it in the veins.