Mental Illness
95 objects illustrate this topic:

 Page: of 10 
Eugenics: The Science of Human Improvement by Better Breeding, by Charles B. Davenport, multiple pages (#1702)
Manual of the Mental Examination of Aliens, United States Public Health Service, multiple pages (#1516)
"Indiana Society for Mental Hygiene Bulletin No. 7" (July 1920), statistics on mental illness and feeblemindedness in institutions around the U.S., multiple pages (#1420)
"Is Our National Intelligence Declining?" L.S. Penrose, Opening Session of 5th Biennial Conference on Mental Health (1/12/39), multiple pages (#2229)
"Is our national intelligence declining? The genetic point of view." L.S. Penrose, multiple pages (#2236)
The Kallikak Family: A Study in the Heredity of Feeble-Mindedness, by Henry Herbert Goddard, selected pages, multiple pages (#1455)
Kallikak family pedigree (#291)
Lancelot Hogben letter to Lionel Penrose congratulating him on his Colchester survey as "prettiest story in genetics of mental conditions" (#2228)
Letchworth Village "freak show", 3rd International Eugenics Conference (#1087)
"Letchworth Village: the newest state institution for the feeble-minded and epileptic," by Charles Little, multiple pages (#359)
Lionel Penrose letter to Lancelot Hogben about early results from his Colchester survey suggesting non-hereditary factors in mental illness (7/19/32) (#2227)