Animal locomotion or walking, swimming, and flying : with a dissertation on aëronautics (1873)
Pettigrew, James Bell, 1834-1908 · London : Henry S. King & Co. · leaf 147
ibration of short-winged, heavy-bodied 124 ANIMAL LOCOMOTION. birds, all which goes to prove that sound is a concomitant ofrapidly vibrating wings. The Wing area Variable and in Excess.—The travelling-surfaces of insects, bats, and birds greatly exceed those offishes and swimming animals; the… … Fig. 57.—Shows a butterfly with comparatively very large wings. The nervuresare seen to great advantage in this specimen : and the enormous expanse ofthe pinions readily explains the irregidar flight of the insect on the principleof recoil, a Anterior wing, h Posterior wing, e Anterior margin of…
Animal locomotion · Physiology · Aeronautics
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