General view of assorted apparatus used in the Fixed Nitrogen Research Laboratory's High-Pressure Laboratory, including a hydraulic pressure pump, piston-type gauges, high-pressure booth, and valve manifold. The individuals present in the photograph are identified as Dr. Bartlett and Mr. Tremearne.
The Fixed Nitrogen Research Laboratory (F.N.R.L.) was established at American University in 1919 under the directorship of Arthur B. Lamb. Initially part of the War Department, the F.N.R.L. was the successor to several wartime initiatives to develop a secure domestic supply of nitrate compounds necessary for the manufacture of explosives during World War I. With a staff of about 110 individuals, including 35 to 50 chemists, the F.N.R.L. focused on the manufacture, production, and development of products of atmospheric nitrogen, including munitions and fertilizers.
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“Hydraulic Pressure Pump and Other Laboratory Apparatus,” August 21, 1928. Travis P. Hignett Collection of Fixed Nitrogen Research Laboratory Photographs, Box 2. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/sq87bt65j.
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