Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics (1874)
Pettigrew, James Bell, 1834-1908 · New York : D. Appleton & company · leaf 197
ting together in flight.When so geared the upper and under wings are delicately curved andtwisted. They moreover taper from within outwards, and from before back-wards.— Original. 172 ANIMAL LOCOMOTION. The wings of insects present different degrees of opacity—those of the moths and butterflies… … Fio. 91.—The Dragon-fly (Petnlura gigantea). In this insect the wings arefinely curved and delicately transparent, the nervnres being most stronglydeveloped at the roots of the wings and along the anterior margins (e e, //),and least so at the tips (6 6), and along the posterior margins (a a).…
Animal locomotion · Aeronautics
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![An illustration from Episodes of insect life / by Acheta Domestica, [pseud.] ;edited and revised by J.G. Wood. (1879)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b28066340-358-1.webp)
