The Chemistry of Commerce: A Simple Interpretation of Some New Chemistry in Its Relation to Modern Industry by Robert Kennedy Duncan [with inscription to E.H.S. Bailey by the author], Sept 30, 1907, Box: 6, Volume: 91. Personal papers of E.H.S. Bailey, PP 158. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/116442 Accessed February 18, 2025.