Arnold, Margaret G.: Photopic Vision in Bluegill Sunfish (Lepomis Macrochirus): An Investigation Using a Heart-Rate Conditioning Technique, 1986, Box: 4. Cornell University Office of Undergraduate Biology honors theses, 53-2-4432. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/919574 Accessed September 01, 2026.