. Animal mechanism: a treatise on terrestrial and aerial locomotion. Animal locomotion. FLIGHT OF INSECTS. 193 The graphic method also furnishes us with the proof of changes in. the plane of the Aving of the insect during the various instants of its FIG. 70.—Tracings of a Whentstone rod tuned to the octave, furnished with the win^r of a wasp, and arranged so as to register especially the upper loop of the 8. Fig. 80 shows the tracing furnished by a wing of a hum- ming-bird moth, arranged so as to touch the cylinder with its posterior edge. Ey bringing the insect not too near, we
. Animal mechanism: a treatise on terrestrial and aerial locomotion. Animal locomotion. FLIGHT OF INSECTS. 193 The graphic method also furnishes us with the proof of changes in. the plane of the Aving of the insect during the various instants of its FIG. 70.—Tracings of a Whentstone rod tuned to the octave, furnished with the win^r of a wasp, and arranged so as to register especially the upper loop of the 8. Fig. 80 shows the tracing furnished by a wing of a hum- ming-bird moth, arranged so as to touch the cylinder with its posterior edge. Ey bringing the insect not too near, we can succeed in producing only intermittent contacts; these take place at the moment when the wing describes that part of the loops of the 8 whose convexity is tangential to the cylinder. The contacts which occupy the upper half of the figure alter- nate with those occupying the lower half. It is .seen, besides, that it is not the same surface of the wing which produces these two kinds of friction. In fact, it is evident that the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marey, Etienne-Jules, 1830-1904. New York : D. Appleton and co.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectanimall, bookyear1879
