. Darwin, and after Darwin. An exposition of the Darwinian theory and a discussion of post-Darwinian questions. Evolution; Heredity. 200 Diirzvin, and after Dai^win. Near the village of Steinheini, in Wiirtemberff, there is an ancient lake-basin, dating from Tertiary. ^^^^ ^ C2D ^ :i '- 16 W III II I Fig. 89.—Transmutations of Planorbis. (After Hyatt.) times. The lake has long ago dried up; but its aqueous deposits are extraordinarily rich in fossil shells, especially of different species of the genus. Please note that these images are extracted from scanned page images that may have been digi


. Darwin, and after Darwin. An exposition of the Darwinian theory and a discussion of post-Darwinian questions. Evolution; Heredity. 200 Diirzvin, and after Dai^win. Near the village of Steinheini, in Wiirtemberff, there is an ancient lake-basin, dating from Tertiary. ^^^^ ^ C2D ^ :i '- 16 W III II I Fig. 89.—Transmutations of Planorbis. (After Hyatt.) times. The lake has long ago dried up; but its aqueous deposits are extraordinarily rich in fossil shells, especially of different species of the genus. 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 Romanes, George John, 1848-1894. Chicago The Open Court Pub. Co


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