Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics (1874)
Pettigrew, James Bell, 1834-1908 · New York, D. Appleton & company · leaf 59
ter in the extremities them-selves), enable the animal to present, when necessary, an exten-sive resisting surface the one instant, and a greatly diminishedand a comparatively non-resisting one the next. This arrange-ment secures the subtlety and nicety of motion demanded bythe several media at… … Fig. 10. Fig. 11. Fig. 12. Fig. 13. Fig. 14. Fig, 10.—Extreme form of com]>ressed foot, as seen in the deer, ox, etc.,adapted specially for land ivRTiiiii.—Original. Fig, 11.—Extreme form of expanded foot, as seen in the Ornitlwrhynclviis,etc., adapted more particularly for i^wmimm^. —Original.…
Animal locomotion · Aeronautics
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