Osler, William. "Illustrations of the Book-worm. Reprinted from the Bodleian Quarterly Record. Vol. I, No. 12, 1917-02, Box: 103, Folder: 11. Sauer's Gouldiana Research about John Gould and other papers, MS 304. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/205502 Accessed June 17, 2024.