Animal locomotion : or, walking, swimming, and flying, with a dissertation on aëronautics (1873)
Pettigrew, James Bell, 1834-1908 · London : Henry S. King · leaf 60
36 ANIMAL LOCOMOTION. and birds. The wings of the bat are deeply concave, and so resemble the wings of beetles and heavy-bodied short-winged birds. The bones of the arm (r), forearm (d), and hand ( n , n, n ) of the bat (fig. 17) support the anterior or thick margin and the extremity of the wing,… … Fig. 17. — The Bat ( Phyllorliina gracilis, Peters). Here the travelling-surfaces (r d e /, a n n n ) are enormously increased as compared with that of the land and water animals generally. Compare with iigures from 10 to 14, p. 34. r Ann of bat ; d forearm of bat ; cf, n n n hand of bat.—…
Aeronautics
Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.