Search Results
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Naval Stores Investigation Laboratory
- 1901 – before 1928
General view of three employees at work in the Bureau of Chemistry's Naval Stores Investigation Laboratory, a division of the Leather and Paper Laboratory. Assorted laboratory glassware and apparatus, as well as notices…
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Agricultural Research Service Drug Laboratory
- 1901 – before 1928
General view of two employees at work in an Agricultural Research Service Drug Laboratory, with view of assorted laboratory glassware and apparatus. Part of the U.S. Department of Agriculture, such laboratories commonly…
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Bureau of Chemistry Dust Laboratory
- 1901 – before 1928
General view of an employee utilizing an apparatus in the Bureau of Chemistry's Dust Laboratory. Part of the U.S. Department of Agriculture's Office of Development Work, the Dust Laboratory conducted research into the…
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Bureau of Chemistry Nitrogen Laboratory
- 1901 – before 1928
General view of an employee conducting an analysis of an unidentified substance in the Bureau of Chemistry's Nitrogen Laboratory. Part of the U.S. Department of Agriculture, the Nitrogen Laboratory conducted…
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Bureau of Chemistry Oil, Fat, and Wax Laboratory
- 1901 – before 1928
General view of two employees working in the Bureau of Chemistry's Oil, Fat, and Wax Laboratory, with view of assorted laboratory glassware and apparatus. Part of the U.S. Department of Agriculture, the Oil, Fat, and…
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Bureau of Chemistry Nitrogen Laboratory
- 1901 – before 1928
General view of an employee conducting an analysis of an unidentified substance in the Bureau of Chemistry's Nitrogen Laboratory. Part of the U.S. Department of Agriculture, the Nitrogen Laboratory conducted…
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Bureau of Chemistry Nitrogen Laboratory
- 1901 – before 1928
General view of the Bureau of Chemistry's Nitrogen Laboratory showing assorted laboratory glassware and apparatus. Part of the U.S. Department of Agriculture, the Nitrogen Laboratory conducted investigations into…
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Bureau of Chemistry Drug Laboratory
- 1901 – before 1928
General view of two employees at work in a Bureau of Chemistry Drug Laboratory, with view of assorted laboratory glassware and apparatus. Part of the U.S. Department of Agriculture, such laboratories commonly…
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Bureau of Chemistry Water and Beverage Laboratory
- After 1901 – 1928
General view of an employee in the Bureau of Chemistry's Water and Beverage Laboratory conducting an analysis on an unidentified substance. Assorted sample jars and scientific apparatus are visible in the photograph.…
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Bureau of Chemistry Nitrogen Laboratory
- 1901 – before 1928
General view of an employee operating an apparatus used to study ammonia at the Bureau of Chemistry's Nitrogen Laboratory. Part of the U.S. Department of Agriculture, the Nitrogen Laboratory conducted investigations…
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Bureau of Chemistry Protein Investigation Laboratory
- 1913 – before 1928
General view of employees at work in the Bureau of Chemistry's Protein Investigation Laboratory, with view of assorted laboratory glassware and apparatus. Part of the U.S. Department of Agriculture, the Protein…
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Bureau of Chemistry Carbohydrate Laboratory
- 1913 – before 1928
General view of the Bureau of Chemistry's Carbohydrate Laboratory showing assorted laboratory glassware and apparatus. Part of the U.S. Department of Agriculture, the Carbohydrate Laboratory analyzed the physical and…
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Bureau of Chemistry Carbohydrate Laboratory
- 1913 – before 1928
General view of the Bureau of Chemistry's Carbohydrate Laboratory showing assorted laboratory glassware and apparatus. Part of the U.S. Department of Agriculture, the Carbohydrate Laboratory analyzed the physical and…
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Polarimeter in Bureau of Chemistry Carbohydrate Laboratory
- 1913 – before 1928
Close-up view of a polarimeter housed in a constant temperature dark room at the Bureau of Chemistry's Carbohydrate Laboratory. Part of the U.S. Department of Agriculture, the Carbohydrate Laboratory analyzed the…
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Bureau of Chemistry Pharmacognosy Laboratory
- 1914 – before 1928
General view of a female employee analyzing unidentified substances in the Bureau of Chemistry's Pharmacognosy Laboratory. Part of the U.S. Department of Agriculture, the Pharmacognosy Laboratory supervised the…
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Bureau of Chemistry Phytochemical Laboratory
- 1916 – before 1928
General view of an employee in the Bureau of Chemistry's Phytochemical Laboratory using a distillation apparatus to concentrate the odorous constituents of apples and peaches. Part of the U.S. Department of Agriculture,…
- Creator Of Work United States. Food and Drug Administration
- Subject Flavor, Employees, Laboratories, Food industry and trade--Safety regulations, Flavoring essences, Flavoring essences industry, Food industry and trade, United States. Bureau of Chemistry and Soils, Scientific apparatus and instruments
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Fixed Nitrogen Research Laboratory apparatus
- 1920s
General view of an unidentified analytical apparatus and technician at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. The Fixed Nitrogen Research Laboratory…
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A study of the mechanism of nitrogen fixation by alpha rays
- 1926-Apr
Dr. D.C. Bardwell inspecting the apparatus used for the fixation of nitrogen by alpha rays at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen…
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Apparatus for the emission of positive ions
- 1926-Apr
General view of an apparatus used for the emission of positive ions at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. The individuals present in the photograph are…
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Measurement of the thermal conductivity of active nitrogen
- 1926-Apr
Dr. Sebastian Karrer using an apparatus to measure the thermal conductivity of active nitrogen at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen…
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Photographing the spectrum of active nitrogen
- 1926-Apr
R.J. Connor photographing the spectrum of active nitrogen at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. In chemistry, "spectrum" commonly refers to the…
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Apparatus for studying the separation of ammonia from carbon dioxide
- Circa 1926
Apparatus used at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory to study the separation of ammonia from carbon dioxide.
The Fixed Nitrogen Research Laboratory (F.N.R.L.) was established at…
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An apparatus for the automatic analysis and indication of the carbon monoxide content of a gas stream
- 1926-Apr
Dr. E. C. White demonstrating an apparatus used for the automatic analysis and indication of the carbon monoxide content of a gas stream at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located…
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2 itemsStudy of the fixation of nitrogen by bacteria
- 1926-Apr
Two views of Dr. F.E. Allison studying the fixation of nitrogen by bacteria at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen Research Laboratory…
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Apparatus for measuring the effect of radiation
- 1926-Apr
General view of an apparatus used to measure the effect of radiation on chemical reactions at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen…