________. "The development of the pharyngeal derivatives of the opossum (Didelphys virginiana), with special reference to the thymus." Reprinted from the American Journal of Anatomy, v.67, no.3, November 1940.

________. "The development of the pharyngeal derivatives of the opossum (Didelphys virginiana), with special reference to the thymus." Reprinted from the American Journal of Anatomy, v.67, no.3, November 1940., 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/262780 Accessed December 25, 2025.