On its voyage, this strange passenger was fed on boiled rice, sweetened with sugar; while at the Museum, it was solaced and fed during its captivity chiefly on fruit, and now and then appeared to enjoy the picking from the bones of a boiled fowl. The fox-bat is but seldom brought alive to this country. The late Mr Cross of the Surrey Zoological Gardens kept one for a short time, and deemed it one of his greatest rarities; and, till the arrival lately of the pair alluded to at the Gardens in the Regent's Park, we have not heard of other specimens having been exhibited in this country. They are difficult to keep, and seem to feel very sensibly the changes of our climate, while it is a hard thing to get for them the food on which they live when in a state of liberty.
Mr Macgillivray discovered a new species of fox-bat on Fitzroy Island, off the coast of Australia, when he was naturalist of H.M.S. Rattlesnake.[25] He fell in with this large fruit-eating bat (Pteropus conspicillatus) on the wooded slope of a hill. They were in prodigious numbers, and presented the appearance, as they flew along in the bright sunshine, of a large flock of rooks. As they were approached, a strong musky odour became apparent, and a loud incessant chattering was heard. He describes the branches of some of the trees as bending beneath the loads of bats which clung to them. Some of these were in a state of inactivity, sleeping or composing themselves to sleep, while many specimens scrambled along among the boughs and took to flight on being disturbed. He shot several specimens, three or four at a time, as they hung in clusters. Unless they were killed outright, they continued suspended for some time; when wounded they are difficult to handle, as they bite severely, and at such times their cry resembles somewhat the squalling of a child. The flesh of these bats is described to be excellent, and no wonder, when they feed on the sweetest fruits; the natives regard it as nutritious food, and travellers in Australia, like the adventurous Leichhardt on his journey to Port Essington, sometimes are furnished with a welcome meal from the fruit-eating fox-bats which fall in their way. Even the polished French, in the Isle of Bourbon, as they used to call the Mauritius, sometimes stewed a Pteropus, in their bouillon or broth to give it a relish.
Travellers observe that in a state of nature the fox-bats only eat the ripest and the best fruit, and in their search for it they climb with great facility along the under side of the branches. In Java, as Dr Horsfield observes, these creatures, from their numbers and fruit-eating propensities, occasion incalculable mischief, as they attack every kind that grows there, from the cocoa-nut to the rarer and more delicate productions, which are cultivated with care in the gardens of princes and persons of rank. The doctor observes, that "delicate fruits, as they approach to maturity, are ingeniously secured by means of a loose net or basket, skilfully constructed of split bamboo. Without this precaution little valuable fruit would escape the ravages of the kalong."
We have mentioned that the fox-bats are occasionally eaten in Australia. Colonel Sykes alludes to the native Portuguese in Western India eating the flesh of another species of Pteropus; and it would seem that but for prejudice, their flesh, like that of the young of the South American monkeys, is extremely delicate; the colonel says, writing of the Pteropus medius, a species found in India, "I can personally testify that their flesh is delicate and without disagreeable flavour."
The Javanese fox-bat occasionally affords amusement to the colonists as well as natives, who chase it, according to Dr Horsfield, "during the moonlight nights, which, in the latitude of Java, are uncommonly serene. He is watched in his descent to the fruit-trees, and a discharge of small shot readily brings him to the ground. By this means I frequently obtained four or five individuals in the course of an hour." The natives of New Caledonia, according to Dr Forster, use the hair of these great bats in ropes, and in the tassels to their clubs, while they interweave the hair among the threads of the Cyperus squarrosus, a grassy-looking plant which they employ for that purpose.
William Dampier,[26] in 1687, observed the habits of a fox-bat on one of the Philippine Islands, though he has exaggerated its size when he judged "that the wings stretched out in length, could not be less asunder than seven or eight foot from tip to tip." He records that "in the evening, as soon as the sun was set, these creatures would begin to take their flight from this island in swarms like bees, directing their flight over to the main island. Thus we should see them rising up from the island till night hindered our sight; and in the morning, as soon as it was light, we should see them returning again like a cloud to the small island till sunrising. This course they kept constantly while we lay here, affording us every morning and evening an hour's diversion in gazing at them and talking about them." Dr Horsfield describes the species, which is abundant in the lower parts of Java, as having the same habit. During the day it retreats to the branches of a tree of the genus Ficus, where it passes the greater portion of the day in sleep, "hanging motionless, ranged in succession, and often in close contact, they have little resemblance to living beings, and by a person not accustomed to their economy, are readily mistaken for a part of the tree, or for a fruit of uncommon size suspended from its branches." The doctor describes their society as being generally silent during the day, except when a contention arises among them to get out of the influence of the sun, when they utter a sharp piercing shriek. Their claws are so sharp, and their attachment is consequently so strong, that they cannot readily leave their hold without the assistance of their wings, and if shot when in this position, they remain suspended.
Dr Mayerne and His Balsam of Bats.
Dr Mayerne, a learned English physician, who died, aged eighty-two, in 1655, showed by his prescriptions that his enlightenment was not more than that of the prevailing ignorance of the period. The chief ingredient in his gout-powder was "raspings of a human skull unburied;" "but," writes Mr Jeaffreson,[27] "his sweetest compound was his 'balsam of bats,' strongly recommended as an unguent for hypochondriacal persons, into which entered adders, bats, sucking whelps, earth-worms, hogs' grease, the marrow of a stag, and the thigh-bone of an ox."
No doubt the doctor imagined that a combination of the virulence, flightiness, swiftness, strength, and other qualities of all these animals would in some mysterious way be communicated to his melancholy patient; and, indeed, by acting on the imagination of such persons a favourable direction is given to their thoughts, and in this way their severe malady may at times have been removed.