Public domain
Production of butylene glycol. A department scientist checks the results of experimental fermentations of corn to produce butylene glycol at the Northern Regional Research Laboratory of the U.S. Department of Agriculture at Peoria, Illinois. This research led to the development of a semi-commercial
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineProduction of butylene glycol. A department scientist checks the results of experimental fermentations of corn to produce butylene glycol at the Northern Regional Research Laboratory of the U.S. Depar. 1942-01-01. Forsythe, William J., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.