The Organization for Tropical Studies Records includes correspondence, administrative materials, reports, memoranda, and course materials from the early years of OTS. The focus of the collection is on the administrative structure of OTS and planning the course offerings in Latin America. Major correspondents include Jorge Campabadal, J. T. Spencer, and Kenneth J. Turnbull. Major topics include tropical biology, geography, meteorology, earth science, and forestry, and the National Science Foundation. The collection is organized into two series. The Administrative series contains correspondence from the North American Office, as well as correspondence with OTS administrators and faculty. In addition, the series has information on committees, sources of funding, founding documents, and topics related to the administration of OTS. The second series, Courses, has information on the planning, curriculum, course participants, critiques, and other aspects of educational programming offered by OTS.