These records pertain to the administration of the Assistant Secretary for Science, David Challinor, 1971- .
Bureaus whose actions are documented in these records are the Center for the Study of Man, Chesapeake Bay Center for Environmental Studies, Fort Pierce Bureau, National Air and Space Museum, National Museum of Natural History, National Zoological Park, Office of International Programs, Radiation Biological Laboratory, Smithsonian Astrophysical Observatory (SAO), Smithsonian Science Information Exchange (SSIE), and the Smithsonian Tropical Research Institute (STRI). These records also document offices that underwent administrative changes during the period 1971-1976, including the Center for Natural Areas, Center for Short-Lived Phenomena, Office of Environmental Programs, Office of Environmental Sciences, Office of International and Environmental Programs, and the Office of Oceanography and Limnology. In addition, there is material concerning the office's involvement with federal and international agencies and private organizations regarding the preservation of endangered species and flora, conservation of the environment, and ecological researches; and the Research Award Program that the office administered.
The pre-1971 material in these records includes that transferred by Challinor and one of his assistants, Michael R. Huxley, from their previous assignment at the Office of International Activities (OIA), where Challinor served as director, 1968-1971, and Huxley served as assistant director, 1970-1971. The remainder of the pre-1971 material was inherited by Challinor from his predecessor, Sidney Rolland Galler.