. The study of animal life. Zoology. 276 The Study of Animal Life part iv. Fig. 61.—Varieties of domestic pigeon arranged around the ancestral rock-dove {Coiumba livi^. (Based on Darwin's figures.). 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 Thomson, J. Arthur (John Arthur), 1861-1933. New York, C. Scribner's sons [printed at the Edinburgh press]

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1892