Darwin's "Origin of Species" articles and clippings [oversize removed to RH MS R358 Box 2 Folder 8], 1982, Box: 4, Folder: 46. John and Frances Peterson collection, RH MS 1330. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/195230 Accessed November 26, 2024.