Walker, John, 1795 - "Elements of Geography...", 2nd ed, London, 1795, Box: 3, Folder: 79. Research papers gathered for A Carto-Bibliography of the Maps in Eighteenth-Century English and American Geography Books, MS 287. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/234285 Accessed June 22, 2025.