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Show 674 ON A CHIMPANZEE IN THE SOCIETY'S GARDENS. [Juue 16, face or cheeks, is tolerably long and full, forming what may be considered rather bushy whiskers ; whereas the figure before you (Plate XLI.) clearly shows the front, top, and sides of the head and face to be nearly naked, having only a few short hairs on the head, quite destitute of any signs of the parting so very conspicuous in the Chimpanzee. Another striking difference may be noticed in the size and form of the head and ears. Out of the number of Chimpanzees I have seen and examined, both old and young, none have possessed the large flat ears so conspicuous in this individual. The form of the head, the expression of the face, the expanded nostrils, the thicker lips, especially the lower lip, together with the more elevated skull, cannot fail to distinguish this animal from the Chimpanzee. There are other external characters that I pass over, as they require to be described anatomically. Again the habits of this animal differ entirely from those of the weil-known or Common Chimpanzee. She has always shown a disposition to live upon animal food. Soon alter her arrival, I found she would kill and eat small birds, seizing them by the neck, she would bite off the head and eat the bird-skin, feathers, and all; for some months she killed and ate a small pigeon every night. After a time we supplied her with cooked mutton and beef-tea ; upon this food she has done well. I have never found any ordinary Chimpanzee that would eat any kind of flesh. Another singular habit was the producing pellets or " quids," resembling the castings thrown up by Raptorial birds ; I have here a few of them, taken from her mouth. They are composed of feathers and other indigestible substances, that had been taken with her food. Moreover she is an expert rat-catcher, and has caught and killed many rats that had entered her cage during the night. Her intelligence is far above that of the ordinary Chimpanzee. With but little trouble she can be taught to do many things that require the exercise of considerable thought and understanding : she recognizes those who have made her acquaintance, and pays marked attention to men of colour, by uttering a loud cry of bon, bun, bun. She is never tired of romping and playing, and is generally in a good temper. 1 have no doubt but that M . du Chaillu obtained specimens of this animal; for I perfectly recollect seeing in his possession some damaged skins the heads of which were quite bald, that is destitute of hair ; but his statements were so vague that it was impossible to say to what species he attached the different names he used. I am therefore, I think, justified in regarding the animal in question as distinct from the well-known or Common Chimpanzee ; and as the term Troglodytes calvus implies a bald-headed animal it appears to me that the animal under consideration is fully entitled to its application. Since writing the above I have examined the specimens in the British Museum obtained from M . du Chaillu, and, notwithstanding the shrivelled condition of the face and ears, I am perfectly satisfied of the identity of this specimen with the animal under consideration. Another consideration is, however, forced upon me, with reference to this subject, and, to give an illustration, I may ask you for a |