Animal locomotion or walking, swimming, and flying : with a dissertation on aëronautics (1873)
Pettigrew, James Bell, 1834-1908 · London : Henry S. King & Co. · leaf 253
y, would fall ina line between b and /, probably in x h. It could not possiblybe otherwise; the wing described and figured by Borelli andMarey is in one piece, and made to vibrate vertically on eitherside of a given line. If, however, a wing in one piece iselevated and depressed in a strictly…
Animal locomotion · Physiology · Aeronautics
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