Animal locomotion or walking, swimming, and flying : with a dissertation on aëronautics (1873)
Pettigrew, James Bell, 1834-1908 · London : Henry S. King & Co. · leaf 162
. 139 the wing, and by the rotation of the bones of the arm, fore-arm, and hand, upon their long axes. The reaction of theair also assists in the production of the oblique surfaces. That the wing twists upon itself structurally, not only inthe insect, but also in the bat and bird, any one may…
Animal locomotion · Physiology · Aeronautics
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