. The descent of man, and selection in relation to sex. Evolution; Heredity; Human beings; Natural selection. 39» THE DESCENT OF MAN. [PART IL ing feathers {d, e,f) in the female. Even the bones of the wing, which support these singular feathers in the male, are said by Mr. Eraser to be much thickened. These little birds. 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 Hurst

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Keywords: ., bookcentury1800, bookdecade1870, booksubjecthumanbeings, bookyear