Creator
- Trease, George Edward, 1902-1
- Trillich, Heinrich1
- Trow, Joseph F.1
- Tungsten Institute1
- Turnbull, Laurence, 1821-19001
- Tyler, Marguerite Griffith, b. 18811
- U.S. Atomic Energy Commission5
- Ullstein GmbH1
- Unesma1
- Union Carbide and Carbon Corporation1
- United States. Agricultural Research Service. Crops Research Division1
- United States. Army. Chemical Warfare Service2
- United States. Bureau of Chemistry1
- United States. Congress1
- United States. Department of Agriculture3
- United States. Department of Commerce1
- United States. Government Printing Office6
- United States. National Aeronautics and Space Administration1
- United States. Office of Civilian Defense3
- United States. Office of Education1