Agricultural Modernization History: Ruhm’s Phosphate & Chemical Company Album Demonstrating Tennessee Mining Operations and Illinois Yield Increases, circa 1928
Industrial Extraction and Scientific Farming in the Interwar Midwest: Ruhm’s Phosphate & Chemical Company (Mt. Pleasant, Tennessee). Photograph album documenting phosphate mining, processing, fertilizer application, and Illinois farm yield demonstrations. Circa 1928. Oblong black album (11 x 7½ inches) containing 77 silver gelatin photographs (majority captioned in typed slips, several.....













