Mental Illness
95 objects illustrate this topic:

 Page: of 10 
Lionel Penrose letter to Lancelot Hogben about early results from his Colchester survey suggesting non-hereditary factors in mental illness (7/19/32) (#2227)
"Mania depressus," flash card on genetic defects (#746)
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)
Mary Dendy letter to Karl Pearson, about definitions and confusing terms used to grade feeble-mindedness (12/5/1912), multiple pages (#1942)
Mary Dendy letter to Karl Pearson, about difficulties in collecting pedigree data and interpreting disease traits in "defective children" (12/9/1906), multiple pages (#1931)
Mary Dendy letter to Karl Pearson, follow-up on definition of feeble-mindedness with reference to British eugenic legislation (12/5/1912) (#1941)
Mendel's Law Poem, by Joseph DeJarnette, MD, witness in Buck vs. Bell case (#1235)
"Mental Deficiency Pedigree," a multigenerational study of a rural family by the British National Association for the Feebleminded, multiple pages (#2213)
"Mental disorders in twins," 3rd International Eugenics Conference (#1088)
"Mongolian idiocy," flash cards on genetic defects (#742)
"Most immediate blood-kin of Carrie Buck. Showing illegitimacy and hereditary feeblemindedness." (#1013)