Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics (1874)
Pettigrew, James Bell, 1834-1908 · New York, D. Appleton & company · leaf 172
lyreverse themselves during the acts of extension and flexion,and so of the posterior axillary and distal curves (figs. 76, 77,and 78). This antagonism in the axillary and clistal curvesfound on the anterior and posterior margins of the wing isreferable in the bat and bird to changes induced in the… … Fig. 76. Fig. 77. Fig. 78. Fig. 76.—Curves seen on the anterior {d e f) and posterior (c a h) margin inthe wing of the bird in flexion. —Origrma^. Fig. 77.—Curves seen on the anterior margin {d ef) of the wing in semi-exten-sion. In this case the curves on the posterior margin (6 c) are…
Animal locomotion · Aeronautics
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