Archive image from page 153 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansel02darw Year: 1871 1-iO SEXUAL SELECTION: BIRDS. [Part II. spot (b), with its bright shading, there is a long, narrow, black mark (c), belonging to the same row, and which is arclied ;i little downward so as to face (b). It is also narrowly edged on the lower side with a fulvous tint. To the left of and above c, in the same oblique direction, but A B c Fig. 58.—Portion of one of the Secondary winj-fenthera near to the bodr ; show ing the so-called elliptic ornaments. T
Archive image from page 153 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansel02darw Year: 1871 1-iO SEXUAL SELECTION: BIRDS. [Part II. spot (b), with its bright shading, there is a long, narrow, black mark (c), belonging to the same row, and which is arclied ;i little downward so as to face (b). It is also narrowly edged on the lower side with a fulvous tint. To the left of and above c, in the same oblique direction, but A B c Fig. 58.—Portion of one of the Secondary winj-fenthera near to the bodr ; show ing the so-called elliptic ornaments. The ri.;ht-hand flgiire is eiven merely as a diagram for the sake of the letters of reference. A, B, C, etc. Rows of spots ruii'iincr down to and formin;; the elliptic ornaments. b. Lowest spot or mark in row B. c. The next sncceeding spot or mark in the same row. d. Apparently a broken prolonsrsition of the spot c in the same row B. always more or less distinct from it, there is another black mark (d). This mark is generally sub-triangular and ir- regular in shape, but in the one lettered in the diagram is unusually narrow, elongated, and regular. It apparently consists of a lateral and broken prolongation of the mark (c), as I infer from traces of similar prolongations from the succeeding upper spots ; but I do not feel sure of this.
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Keywords: 1800, 1870, 1871, archive, book, bookauthor, bookcentury, bookdecade, bookpublisher, booksubject, bookyear, darwin_charles_1809_1882, drawing, evolution_biology_, historical, history, human_beings, illustration, image, new_york_d_appleton_and_company, page, picture, print, reference, sex_differences, sexual_dimorphism_animals_, sexual_selection_in_animals, vintage
