. Comparative zoology, structural and systematic. For use in schools and colleges. Zoology. DEVELOPiMENT. 211 the Rhinoceros, the horns are odd, i. e., single, or two placed one behind the other. Creatures with feathers al- ways have beaks. Pio-eons w^ith short beaks have small. HOMOLOGIES OF LIMBS. Fio. 175.—Arm and Leg of Mau, as they are when he gets down on all fours. Fio. 176.—Fore and Hind Legs of Tapir. Fio. 177.—Fore Leg of Seal and Hind Leg of Alligator. Fig. 17S.—Wing of the Bat. S, scapula ; I, ilium, or shin-bone of pelvis; H, hnmeius; F, femur ; O, olecranon, or tip of the elbow ;

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. Comparative zoology, structural and systematic. For use in schools and colleges. Zoology. DEVELOPiMENT. 211 the Rhinoceros, the horns are odd, i. e., single, or two placed one behind the other. Creatures with feathers al- ways have beaks. Pio-eons w^ith short beaks have small. HOMOLOGIES OF LIMBS. Fio. 175.—Arm and Leg of Mau, as they are when he gets down on all fours. Fio. 176.—Fore and Hind Legs of Tapir. Fio. 177.—Fore Leg of Seal and Hind Leg of Alligator. Fig. 17S.—Wing of the Bat. S, scapula ; I, ilium, or shin-bone of pelvis; H, hnmeius; F, femur ; O, olecranon, or tip of the elbow ; P, patella; U, nlna; T, tibia; R, radius ; Fi, fibula; Po, poliex, or thumb; Ha, hallex, or great toe. Compare the fore and hind limbs of the same animal, and the fore or hind limbs of different animals. Note the directions of the homologous seg- 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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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectzoology