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.
|Original file type||TIFF|
|View in library catalog|
“Geiger Counter in Use at U.S. Department of Agriculture Facility,” 1950–1959. Travis P. Hignett Collection of Fixed Nitrogen Research Laboratory Photographs, Box 4. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/sb3978261.
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