. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ULTRASONIC ECHOES FROM MOTHS 205 twice in rapid succession near the top of the stroke, depending upon the amplitude of the stroke and upon the precise angle of the moth relative to the sound path. Recordings made with the axis of the potential flight path at other angles to the sound path showed similar fluctuations of echo with wingbeat, hut the size of the maximum echo never reached that recorded when the axis of the. FIGURE 3. Consecutive frames from motion picture of echo and attitude of flying Orthosia hihisci. Ultrason
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ULTRASONIC ECHOES FROM MOTHS 205 twice in rapid succession near the top of the stroke, depending upon the amplitude of the stroke and upon the precise angle of the moth relative to the sound path. Recordings made with the axis of the potential flight path at other angles to the sound path showed similar fluctuations of echo with wingbeat, hut the size of the maximum echo never reached that recorded when the axis of the. FIGURE 3. Consecutive frames from motion picture of echo and attitude of flying Orthosia hihisci. Ultrasonic pulse 85 kcps, msec, in duration. Grid equals msec, on oscillogram, cm. on photograph. A, the second half of the upstroke. B, image held nearly stationary in stroboscopic sequence. C, path of moth directly away from sound source, wings in phases of 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
