Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics (1874)
Pettigrew, James Bell, 1834-1908 · New York, D. Appleton & company · leaf 110
stroke, both of the arms and legs,this being equal to nearly half an ellipse. Thus when theleft arm and leg are thrust forward, the arm describes thecurve a h (fig. 42), the leg e describing a similar curve. Asthe right side of the body virtually recedes when the leftside advances, the right arm… … Fig. 42. —Overliand S^wimming.—Origi7ial. the body alternately, in a nearly straight line, greatly couvtributes to continuity of motion, the impulse being appliednow to the right side and now to the left, and the limbsbeing disposed and worked in such a manner as in a greatmeasure to reduce…
Animal locomotion · Aeronautics
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