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Photographs, Stereographs

A reservoir after evaporation – turning up the salt – salt fields, Solinen, Russia
- After 1895
View of a reservoir among the extensive salt fields in Solinen, Russia, located along the Black Sea, following evaporation. Women are seen breaking up the crust of salt formed by evaporation, while masses of salt…
- Publisher Underwood & Underwood
- Subject Employees, Manufacturing industries, Salt industry and trade, Salt mines and mining, Women employees
Photographs

Beckman HC/CO Tester in use measuring automobile exhaust
- 1970s
A man in a lab coat and a woman with a clipboard record the readings of an HC/CO Tester attached to the tailpipe of an automobile. This instrument measures the levels of hydrocarbons (HCs) and carbon monoxide (CO)…
- Creator Of Work Beckman Instruments, Inc.
- Subject Automobiles--Motors--Exhaust gas, Automobiles--Pollution control devices, Scientific apparatus and instruments, Automobiles, Beckman Instruments, Inc., Women in science
Photographs

Checking Odor Values
- 1950s
View of chemists checking the odor values of the fractions of the distilled oil before bulking at the Norda Company plant in Boonton, New Jersey.
- Creator Of Work Norda Essential Oil and Chemical Company
- Subject Norda Essential Oil and Chemical Company, Essences and essential oils industry, Perfumes industry, Women employees, Employees, Research, Industrial--Laboratories

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