. Biology and its makers. Biology -- History. FIG. 50.—VON KOELLIKER, 1817-1905,. 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 Locy, William A. (William Albert), 1857-1924. New York, H. Holt and Company

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