United States. Department of Agriculture
Dates
- Existence: 1862-05-15-
- Existence: 1862
Found in 3 Collections and/or Records:
David Spence: Guayule Rubber Project Records
Reports, correspondence, patent files, reprints of articles, photographs, experiment files, and graphs belonging to Scottish-American rubber chemist David Spence. The materials in this collection document Spence’s involvement in Intercontinental Rubber Company’s efforts in producing rubber from guayule during the 1920s and 1930s and the Guayule Rubber Project during World War II.
John E. Mehren Chemical Industries Publications Collection
A collection of chemical industry marketing materials and technical bulletins from 1932 to 1996 as collected and maintained by John E. Mehren on the behalf of the PM Chemical Company.
Travis P. Hignett Collection of Fixed Nitrogen Research Laboratory Photographs
Scrapbook and individual images from the United States Department of Agriculture (U.S.D.A.) Fixed Nitrogen Research Laboratory (F.N.R.L.) and other U.S.D.A. sites circa 1920s to 1950s.