United States. Bureau of Plant Industry
Found in 1 Collection or Record:
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.