Martyn, Wiliam Frederick, 1793-1794 - "The Geographical Magazine...", Harrison, London, 1793-1794, Box: 2, Folder: 103. 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/234139 Accessed December 01, 2024.