Figure 50. Retort Stand large, brass, with tubulated retort, receiver.
Figure 51. Scales, Chemical, with decimal weights to the tenth of a grain, brass pans, warranted to weigh accurately to the tenth of a grain.
General view of weigh-tanks for caustic soda and ethyl cellulose at the Hercules Powder Company's Ethyl Cellulose plant in Hopewell, Virginia. Per notations accompanying the photograph, caustic soda and ethyl cellulose…
General view of first class operator Sylvester (Syl) Demskie weighing diazo and potassium chlorate in the mix house at the Hercules Powder Company plant in Port Ewen, New York. Diazo and potassium chlorate were two…
- Circa 1949
General view of the Rubber Ingredient and Weigh-Up Room at the Naval Air Experimental Station. Adjacent to the Rubber Compounding and Processing Laboratory, the room contained cupboards and bins housing over…