With regard to the sub-orbital sinus, which in this and all the neighbouring species is of very considerable size, its uses are evidently connected with the function of respiration, and probably also with the sense of smell. It is denoted externally by a longitudinal fissure, placed beneath the inner angle of each of the eyes, and leading into a sac or cavity, which in some cases communicates internally with the nose; and its inner surface is lined by a membrane abundantly supplied with follicles for the secretion of mucus, which is sometimes produced in very large quantities. This latter circumstance has induced some naturalists to regard these openings as mere cuticular appendages. That they really, in some species at least, communicate with the nostrils, is proved by the observations of Mr. White of Selbourne, who states that in consequence of this communication the Fallow-Deer are enabled to take long-continued draughts with their noses deeply immersed in the water, the air in the mean time passing through the sub-orbital slits. So singular a statement was naturally enough doubted and called in question; but it has never, so far as we know, been impugned on ocular testimony; while it has received the fullest confirmation from other observations made upon the very species now under consideration, in which the air passing from the sub-orbital sinus, while the animal drinks, may be felt by the hand, and even affects the flame of a candle. Another proof of the connexion of these cavities with the nose is derived from the fact that the animals which are provided with them frequently apply their orifices, equally with those of the nostrils, to the food which they are about to take, opening and shutting them with great rapidity. The subject of the present article, which, like all the rest of the minor group of which he forms a part, is a native of India and of the Indian Islands, was a present to his Majesty, who kept him for some time, in company with another of the same species, at large in the great park at Windsor. As both, however, happened to be males, they disagreed so violently, and their quarrels at length rose to such a pitch, that in order to preserve peace it was found absolutely necessary to separate them; and our animal, as the most outrageous of the two, was dismissed the royal service, and condemned to the captivity of the Tower. Since this period he has become exceedingly tame, the cause of his former ill temper being removed, and demeans himself as quietly as the most harmless and gentlest of his tribe. [Illustration] [Illustration] THE INDIAN ANTELOPE. _ANTILOPE CERVICAPRA._ PALL.