Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics (1874)
Pettigrew, James Bell, 1834-1908 · New York, D. Appleton & company · leaf 93
Fig. 32.—Swimming of the Sturgeon. From Nature. Compare with figs. 18and 19, pp. 37 and 39; fig. 23, p. 43; and figs. 64 to 73, pp. 139, 141 an.l14:4:.—Original. The double curve is necessary to enable the fish to presenta convex or non-biting surface (c) to the water during flexion(the back stroke…
Animal locomotion · Aeronautics
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