Archive image from page 387 of The descent of man . The descent of man : and selection in relation to sex descentofmanseledarw Year: 1874 Fig. 45. Secondary wing-feathers of Pipra deliciosa (from Mr. Sclater, in 'Proc. Zool. Soc' 1860). The three upper feathers, a, b, c, from the male; the three lower corresponding feathers, d, e, f, from the female. a and d, fifth secondary wing-feather of male and female, upper surface. b and e, sixth secondary, upper surface, c and f, seventh secondary, lower surface. 57 Sclater, in 'Proc. Zool. Soc' 1860, p. 90, and in 'Ibis,' vol. iv. 1862, p. 175. Also
Archive image from page 387 of The descent of man . The descent of man : and selection in relation to sex descentofmanseledarw Year: 1874 Fig. 45. Secondary wing-feathers of Pipra deliciosa (from Mr. Sclater, in 'Proc. Zool. Soc' 1860). The three upper feathers, a, b, c, from the male; the three lower corresponding feathers, d, e, f, from the female. a and d, fifth secondary wing-feather of male and female, upper surface. b and e, sixth secondary, upper surface, c and f, seventh secondary, lower surface. 57 Sclater, in 'Proc. Zool. Soc' 1860, p. 90, and in 'Ibis,' vol. iv. 1862, p. 175. Also Salvin, in 'Ibis,' 1860, p. 37.
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