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 Lucien Howe letter to Charles Davenport about Mendel's Centennial (#324)
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 Lucien Howe letter to Harry Laughlin, about AMA study on hereditary blindness, multiple pages (#311)
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 Lucien Howe letter to Harry Laughlin about Mendel's Centennial, multiple pages (#323)
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 Lucien Howe response to Charles Davenport and Harry Laughlin, about sterilization, marriage and blindness, multiple pages (#325)
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 Male anthropometric series (1927-29), Brooklyn Orphan Assylum, observed by "CBD" (Charles Benedict Davenport) (#2496)
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 Male twins undergoing spirometry by Otmar Freiherr von Verschuer (#2267)
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 Margaret Sanger testisfies on birth control before Senate committee, People (April 1931) (#1616)
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 Mary Dendy letter to Karl Pearson, about case of "Alfred D. aged 18 Feeble-minded" whose only work is "holding pigs whilst they are slaughtered", multiple pages (#1939)
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 Mary Dendy letter to Karl Pearson, about definitions and confusing terms used to grade feeble-mindedness (12/5/1912), multiple pages (#1942)
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 Mary Dendy letter to Karl Pearson, follow-up on definition of feeble-mindedness with reference to British eugenic legislation (12/5/1912) (#1941)
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 Morris Steggerda (31), with mother (30), father (47) and sister (50), photographs from his own family pedigree (#2427)
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Leading Eugenicists