. The descent of man : and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings. Chap. XIII. Law of Battle. 3^5 are larger in the male than in the female.^'^ In certain plovers, however, the wing-spurs must be considered as a sexual cha-. Fig. 38. Palamedea cornuta (from Brehm), shewing the double wing-spurs, and the filament on the head. i« For the Egyptian goose, see p. 639. For Plectropterus, < Living- Macgillivray,' British Birds,' vol. iv. stone's Travels,' p. 254. For Pala-. Please note that these images are extracted from scanned page images that may hav
. The descent of man : and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings. Chap. XIII. Law of Battle. 3^5 are larger in the male than in the female.^'^ In certain plovers, however, the wing-spurs must be considered as a sexual cha-. Fig. 38. Palamedea cornuta (from Brehm), shewing the double wing-spurs, and the filament on the head. i« For the Egyptian goose, see p. 639. For Plectropterus, < Living- Macgillivray,' British Birds,' vol. iv. stone's Travels,' p. 254. For Pala-. 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 : D. Appleton and Company
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