TY - MANSCPT DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: No Known Copyright TI - Geiger counter in use at U.S. Department of Agriculture facility ID - sb3978261 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/sb3978261 AB - View of chemist George Wieczorek (right) using a Geiger counter to measure ionizing radiation in an unknown substance, likely soil or fertilizer, at an unidentified U.S. Department of Agriculture facility. KW - Nitrogen fertilizer industry KW - United States. Bureau of Chemistry and Soils KW - Chemists KW - Geiger-Mùˆller counters KW - Fertilizer industry--Equipment and supplies KW - United States. Department of Agriculture KW - Employees LA - ER -