Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics (1874)
Pettigrew, James Bell, 1834-1908 · New York, D. Appleton & company · leaf 188
k, behind the volantanimal—in other words, to elevating the wing preparatory toa second down stroke, as seen at g of the figures referred to(figs. 84 and 85). The ascent and descent of the wing isalways very much greater than that of the body, from the factof the pinion acting as a long lever. The… … Fig. 87. by the pinion. The part which the body performs in flight iiindicated at fig. 87. At a the body is depressed, the wingbeing elevated and ready to make the down stroke at h. The 164 ANIMAL LOCOMOTION. wing descends in the direction c d\ but the moment it beginsto descend the body moves…
Animal locomotion · Aeronautics
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