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"The German Sterilization Law," by Paul Popenoe, Journal of Heredity (vol. 25) (#2309)
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"The Investigators," Ivan E. McDougle and assistants (Gwendolyn Watson, Martha Lobingier, Eleanor Harned), in Amherst County, Virginia (#1259)
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"The man of mystery who is searching for the secret of life," The World Magazine, article on Charles Davenport, multiple pages (#513)
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The Nam Family: A Study in Cacogenics (Eugenics Record Office Memoir No. 2), by A.H. Estabrook and C.B. Davenport, introduction and early history, multiple pages (#1415)
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The Nam Family, by A. Estabrook and C. Davenport, field photographs and portraits with pedigree numbers from back of Estabrook's copy, multiple pages (#1430)
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The Nam Family, by A. Estabrook and C. Davenport, field photographs and portraits with pedigree numbers from back of Estabrook's copy., multiple pages (#1435)
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The Nam Family, by A. Estabrook and C. Davenport, pedigree of V106-V109 (p. 26) and corresponding field portraits from back of Estabrook's copy, multiple pages (#1392)
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The Nam Family, by A. Estabrook and C. Davenport, pedigree of V470 (p. 18) and corresponding field portraits from back of Estabrook's copy, multiple pages (#1390)
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The Nam Family, by A. Estabrook and C. Davenport, pedigree of V87, V127, V155 (p. 21) and corresponding field portraits from back of Estabrook's copy, multiple pages (#1391)
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"The New Decalogue of Science," by Albert Edward Wiggam, multiple pages (#1349)
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"Theory of Ancestral Contributions in Heredity," handwritten manuscript by Karl Pearson, published in Proceedings of the Royal Society (vol. 81:547), multiple pages (#1970)
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