. Comparative zoology, structural and systematic. For use in schools and colleges. Zoology. 346 COMPARATIVE ZOOLOGY. but the arms are always somewhat shorter tlian the legs. In all the great Apes the arms reach below the knee, and the legs of the Chimpanzee and Gorilla are relatively shorter than Man's. Man only has a finished hand, most perfect as an organ of touch, and most versatile. Both hand and foot are rel- atively shorter than in the Apes. The foot is plantigrade; the leg bears vertically npon it; the heel and great toe are lon<2;er than in other Primates. a ^ Fig. 34T.—Foot (a) and
. Comparative zoology, structural and systematic. For use in schools and colleges. Zoology. 346 COMPARATIVE ZOOLOGY. but the arms are always somewhat shorter tlian the legs. In all the great Apes the arms reach below the knee, and the legs of the Chimpanzee and Gorilla are relatively shorter than Man's. Man only has a finished hand, most perfect as an organ of touch, and most versatile. Both hand and foot are rel- atively shorter than in the Apes. The foot is plantigrade; the leg bears vertically npon it; the heel and great toe are lon<2;er than in other Primates. a ^ Fig. 34T.—Foot (a) and Hand (b) of the Gorilla. opposable, but is used only as a fulcrum in locomotion. The Gorilla has both an inferior hand and inferior foot. The hand is clumsier, and with a shorter thumb than Man's; and the foot is prehensile, and is not applied flat to the ground.^'' The scapular and pelvic bones are extremely broad, and the neck of the femur remarkably long. Man is also sin- gular in the double curve of the spine: the Baboon comes nearest to Man in this respect. The human skull has a smooth, rounded outline, eleva- ted in front, and devoid of crests. The cranium greatly predominates over the face, being four to one ;'"* and no other animal (except the Siamang Gibbon) has a chin. Man stands alone in the peculiarity of his dentition : his. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Orton, James, 1830-1877. New York, Harper and brothers
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