Elmer Lee Tyrey was a professor at Duke University School of Medicine from 1983 to 2006. He taught in multiple departments during his time at Duke, serving as a Professor in the Department of Obstetrics and Gynecology (1983-2006), a Professor for the Department of Neurobiology (1994-2006), and an Associate Professor in the Department of Anatomy (1987-1989). This collection contains published articles and manuscripts, as well as experimental procedures, notes, and laboratory notebooks concerning Lee Tyrey's research into the neuroendocrine mechanisms that regulate reproductive function through the use of the rat model. The collection also contains materials collected by Tyrey during his times as a professor at Duke University School of Medicine, including medical illustrations, teaching and informational films, publications, and memoranda. Materials range in date from 1969 to 1991.