Enlarged Photograph from “Brains of Feebleminded and Criminalist Persons,” a display at the 1921 Second International Congress of Eugenics. Part of Myrtelle M. Canavan Papers, 1898-1945, GA 10.20 “Myrtell Used with permission from the Harvard Medical Library. Abigail Jane Mack I began Part 1 of this series with the image I reproduce here. Item number 1552…