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
r correspondingto that described by the body. If the concavity of thecurve formed by the body is directed to the right side,the fish swims in a curve towards that side. To this thereis no exception, as any one may readily satisfy himself, bywatching the movements of gold fish in a vase.… … FIG. 32.— Swimming of the Sturgeon. From Nature. Compare with figs. ISand 19, pp. 37 and 39; fig. 23, p. 43; and figs. 64 to 73, pp. 139, 141 aud-144.— 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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