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Alfred Russel Wallace American Eugenics American Eugenics Society animals argued argument army asserted attitudes behavior biological birth control Britain British century character Charles Davenport civilization claimed compulsory sterilization counselors crime criminals Darwin degeneration disease economic environment especially eugenicists eugenics movement Eugenics Record Office Eugenics Society evolution evolutionary explained Fabian feebleminded Galton genes genetic counseling geneticists German Goddard Harry Laughlin Havelock Ellis hereditary heredity human genetics Huntington's chorea imbeciles immigrants improve individuals inferior inheritance insane institutions intelligence Jukes Kallikak Family Lamarckian Laughlin medical genetics mental defect mental tests moral morons Muller natural selection Nazi Nordic offspring parents pauperism percent persons physical political Popenoe and Johnson popular population prevent produce race racial reform reproductive scientific scientists segregation and sterilization social socialist sterilization laws Stopes struggle studies theory thought traits unfit United Wallace Weismann women workers wrote York