Watts, Isaac, 1726 - "Knowledge of the Heavens...", London, 1726, Box: 3, Folder: 85. 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/234291 Accessed June 17, 2025.