. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings -- Origin. Chap. X. Orthoptera. 287 and remarkable modification; in the males a small notched ridge projects obliquely from each side of the abdomen, against which the hind femora are As the male is furnished with wings (the female being wingless), it is re- markable that the thighs are not rubbed in the usual manner against the wing-covers; but this may perhaps be accounted for by the unusually small size of the hind-legs. I have not been able to examine the inner surface of
. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings -- Origin. Chap. X. Orthoptera. 287 and remarkable modification; in the males a small notched ridge projects obliquely from each side of the abdomen, against which the hind femora are As the male is furnished with wings (the female being wingless), it is re- markable that the thighs are not rubbed in the usual manner against the wing-covers; but this may perhaps be accounted for by the unusually small size of the hind-legs. I have not been able to examine the inner surface of the thighs, which, judging. 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 Darwin, Charles, 1809-1882. New York, Appleton
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Keywords: ., boo, bookcentury1800, bookdecade1880, booksubjectnaturalselection
