Heredity and social progress / Simon N. Patten. Patten, Simon N. (Simon Nelson), 1852-1922. Heredity. Progress. 575.12 PAH London : The Macmillan & co., ltd. 1903. 1903. 1903 Text vii, 214 p. ; http://hdl.loc.gov/loc.gdc/scd0001.00174117196 eng Also available in digital form on the Internet Archive Web site. Also available in digital form on the Internet Archive Web site.