The specific gravity of "soap" oil is determined. "Soap" oil is obtained by extraction with a solvent from the cake which remains after the first two pressings. One third of our total consumption of fats and oils is for non-food uses. Eighteen percent of this non-food uses of oil is for soap
Summary
Public domain photograph of California in 1930s, free to use, no copyright restrictions image - Picryl description
Tags
Date
01/01/1942
Contributors
Lee, Russell, 1903-1986, photographer
Location
california
Source
Library of Congress
Copyright info
No known restrictions. For information, see U.S. Farm Security Administration/Office of War Information Black & White Photographs http://www.loc.gov/rr/print/res/071_fsab.html