The Struggle of Geoffroy Saint-Hilaire Against Cuver in Favor of Paleontological Evolution (1825-1838) by Franck Bourdier, Box: 74, Folder: 5. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/151054 Accessed June 14, 2024.