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on sexual propagation, [166-167].
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Heredity, various theories of, [2], [49], [70];
statement of Weismann’s theory of, [17];
modification of Weismann’s theory of, [28], [46], [52], [65], [68], [75], [163] et seq.;
the nucleus and, [29];
“carriers of,” 32, [38], [70], [78], [122];
theory of and histology, [38];