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. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. DIAGRAM OF VARIATION 1 5 10 15 20 25 SO 32. ^ 5 in , 15 20 25 80 82 Fia. 13.—Sciums carolinensis. 32 specimens. 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 Wallace, Alfred Russel, 1823-1913. London : Macmillan
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Keywords: ., bookauthorwallacealfredrussel18, bookcentury1800, bookdecade1880