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- EbookOn Germinal Selection as a Source of Definite VariationAugust Weismann
- EbookOn Germinal Selection as a Source of Definite VariationAugust Weismann
- EbookEvolution in Modern ThoughtC. Lloyd (Conwy Lloyd) Morgan
- EbookEssays Upon Heredity and Kindred Biological ProblemsAugust Weismann
- EbookEssays Upon Heredity and Kindred Biological ProblemsAugust Weismann
- EbookEvolution in Modern ThoughtC. Lloyd (Conwy Lloyd) Morgan
- EbookEssays Upon Heredity and Kindred Biological ProblemsAugust Weismann