Gage, Susanna Phelps. "A three weeks' human embryo with especial reference to the brain and the nephric system." Reprinted from the American Journal of Anatomy, 15 September 1905.

Gage, Susanna Phelps. "A three weeks' human embryo with especial reference to the brain and the nephric system." Reprinted from the American Journal of Anatomy, 15 September 1905., Box: 2. Veterinary Reprint and Pamphlet Collection, 24-4-3369. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/262634 Accessed December 21, 2025.