The Bookshelf for boys and girls: Nature and Outdoor Life (1912)
University Society, New York · New York. : University Society · leaf 40
s remarkably heavy and limited bothin direction and duration. There is quite as muchdifference between the easy, graceful, sweeping,tireless flight of a man-of-war bird and the direct, FLYING THINGS 235 labored, short spurt of a grouse as there is be-tween the relative size or expanse of their… … FIG. 2. THE CUTTING EDGE OF A BIRD.To show the small resistance to the air in the direction of flight, a,wild duck; b, grouse and quail; c, crow; d, man-of-war bird — atypical sea-bird. comparatively small, rounded wings and heavybodies. When the flight is between these ex-tremes, the extent of the…
Children's literature · Children's encyclopedias and dictionaries · Literature · Encyclopedias and dictionaries
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