General view of the trays used to expose fertilizer to humidity in the Air Control Room at the U.S. Department of Agriculture's Agricultural Engineering Laboratory.
|Original file type||TIFF|
|View in library catalog|
“Fertilizer Trays at the Agricultural Engineering Laboratory,” July 15, 1953. Travis P. Hignett Collection of Fixed Nitrogen Research Laboratory Photographs, Box 4. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/h415p955g.
This citation is automatically generated and may contain errors.