. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings; Sexual selection in animals; Sexual dimorphism (Animals); Sex differences. SM,.. Fig. 59. Portion of one of the secondary wine-feathers near the body, showing the so-called elliptic ornaments. The ri^nt-hand figure is given merely as a diagram for the sake of the letters of reference. A, B, C, D, etc. Rows of spots running down to and forming the elliptic ornaments. b. Lowest spot or mark in row B. c. The next succeeding spot or mark in the same row. 4. Apparently a broken prolongation
. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings; Sexual selection in animals; Sexual dimorphism (Animals); Sex differences. SM,.. Fig. 59. Portion of one of the secondary wine-feathers near the body, showing the so-called elliptic ornaments. The ri^nt-hand figure is given merely as a diagram for the sake of the letters of reference. A, B, C, D, etc. Rows of spots running down to and forming the elliptic ornaments. b. Lowest spot or mark in row B. c. The next succeeding spot or mark in the same row. 4. Apparently a broken prolongation of the spot C in the same row B. • (5) corresponds in every respect with the basal shaded spot of the simple feather described in the last paragraph (fig. 58), but is more highly developed and more brightly col- ored. Above and to the right of this spot {b fig. 59), with its bright shading, there is a" long, narrow, black mark (6'), beAoBging to the same row, and which is arched a little downward so as to face (b). This mark is sometimes broken i into two portions. It is also narrowly edged on the lower side with a fulvous tint. To the left of and above (c), in ^the sam? obU(jue direction, but always mor^ or less distinct. 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 : A. L. Burt
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Keywords: ., bookcentury1800, bookdecade1870, booksubjecthumanbeings, bookyear
