As to the various kinds of apes, they offer a perfect resem- blance to man in the face, the nostrils, the ears, and the eyelids; being the only quadrupeds, in fact, that have eyelashes on the lower eyelid. They have mammæ also on the breast, arms and legs, which bend in opposite directions, and nails upon the hands and fingers, the middle finger being the longest. They differ somewhat from man in the feet; which, like the hands, are of remarkable length, and have a print similar to that of the palm of our hand. They have a thumb also, and articulations similar to those in man. The males differ from man in the sexual parts only, while all the internal viscera exactly resemble those of man.