TY - MANSCPT DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: No Known Copyright TI - Kiln in use at U.S. Department of Agriculture facility ID - tm70mv18h DA - 1950/// YR - 1950 AV - Travis P. Hignett Collection of Fixed Nitrogen Research Laboratory Photographs, Box 4 VL - Travis P. Hignett Collection of Fixed Nitrogen Research Laboratory Photographs, Box 4 AN - Travis P. Hignett Collection of Fixed Nitrogen Research Laboratory Photographs, Box 4 UR - https://digital.sciencehistory.org/works/tm70mv18h AB - View of chemist George Wieczorek removing a vessel from a Pereco kiln at an unidentified U.S. Department of Agriculture facility. KW - Nitrogen fertilizer industry KW - United States. Bureau of Chemistry and Soils KW - Chemists KW - Kilns KW - United States. Department of Agriculture KW - Employees KW - Fertilizer industry--Equipment and supplies LA - ER -