Animal locomotion : or, walking, swimming, and flying, with a dissertation on aëronautics (1873)
Pettigrew, James Bell, 1834-1908 · London : Henry S. King · leaf 228
ey acquire during their descent materially aiding them in their subaqueous flight. They emerge from the water and are again upon the wing before the eddies occasioned by their precipitous descent have well subsided, in some cases rising apparently without effort, and in others running along and… … Fig. 107. — The Red-headed Pochard (Fuligula ferina, Linn.) in the act of drop- ping upon the water ; the head and body being inclined upwards and for- wards, the feet expanded, and the wings delivering vigorous short strokes in a downward and forward direction. — Original. wheeling, gliding, and…
Aeronautics
Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.
