. A critique of the theory of evolution. Evolution; Evolution. Fig. 55. Group III. (See text.) varies greatly according to the amount of nourishment obtained by the larva. After the fly emerges its size remains nearly constant, as in many insects. Two races have, how-. 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 Morgan, Thomas Hunt, 1866-1945; Louis Clark Vanuxem Foundation. Princeton, Princeton University Press

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