Archive image from page 386 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele1889xdarw Year: 1889 Chap. XIII. Law of Battle. 35 are larger in the male than in the In certain plovers, however, the wing-spurs must be considered as a sexual cha- Fig. 28. Palamedea cornuta (from Brehm), shewing the double wing-spurs, and the filament, on the head. 16 For the Egyptian goose, see p. 639. For Plectropterus, 'Living- Macgillivray,' British Birds,' vol. iv. stone's Travels,' p. 254. For Pala-

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