Search Results
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Fertilizer testing apparatus mounting frame and driving mechanisms
- 1935
Close-up view of the mounting frame and driving mechanisms of the fertilizer distribution testing apparatus used in the U.S. Department of Agriculture's Fertilizer Machinery Laboratory located at the Arlington…
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Constant Humidity Room at the Fertilizer Machinery Laboratory
- Circa 1935
General view of assorted equipment and apparatus in the Constant Humidity Room at the the U.S. Department of Agriculture's Fertilizer Machinery Laboratory located at the Arlington Experimental Farm in Rosslyn…
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Indoor soil track at Fertilizer Machinery Laboratory
- 1935
General view of the indoor soil track used in the U.S. Department of Agriculture's Fertilizer Machinery Laboratory located at the Arlington Experimental Farm in Rosslyn [Arlington], Virginia. Measuring 9 feet wide by 70…
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Air-conditioning equipment at Fertilizer Machinery Laboratory
- 1935
General view of the air-conditioning equipment used in the U.S. Department of Agriculture's Fertilizer Machinery Laboratory located at the Arlington Experimental Farm in Rosslyn [Arlington], Virginia. This particular…
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Fertilizer distribution testing apparatus
- 1935
General view of the fertilizer distribution testing apparatus used in the U.S. Department of Agriculture's Fertilizer Machinery Laboratory located at the Arlington Experimental Farm in Rosslyn [Arlington], Virginia. The…
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Agricultural Engineering Laboratory
- 1943-Dec-09
Exterior view of the U.S.D.A.'s Agricultural Engineering Laboratory located in Beltsville, Maryland. The laboratory was predominately used for practical investigations related to plants and fertilizers in support of the…
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Machine shop at the Fertilizer Machinery Laboratory
- 1935
General view of the machine shop at the U.S. Department of Agriculture's Fertilizer Machinery Laboratory located at the Arlington Experimental Farm in Rosslyn [Arlington], Virginia. Established by an act of Congress in…
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Unidentified U.S.D.A. building
- 1940s – circa
Exterior view of an unidentified United States Department of Agriculture building. The building is believed to be part of the U.S.D.A.'s Agricultural Engineering Laboratory facility located in Beltsville, Maryland.
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Fertilizer Machinery Laboratory
- 1935-Nov
Exterior view of the Fertilizer Machinery Laboratory at the Arlington Experimental Farm in Rosslyn [Arlington], Virginia. Established by an act of Congress in April 1900, Arlington Farm served as the main field…
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2 items
Parts of an apparatus used to grow higher plants in a sterile medium
- 1930-Jan-08
Two views of the component parts of an apparatus used to grow higher plants in a sterile medium at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen…
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2 items
Study of the effects of boric acid on soy beans
- 1927-Jul-26
Two views of culture samples used to study the effect of boric acid on the production of nodules upon the roots of soy beans grown under pure culture conditions at the U.S. Department of Agriculture's Fixed Nitrogen…
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Results of an experiment to determine if corn can secure nitrogen from air
- 1927-Jul-26
General view of culture samples used for an experiment to determine if corn can secure its nitrogen from the air if grown in the presence of nitrogen-fixing bacteria. This experiment was conducted at the U.S.…
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2 items
Thermocouple apparatus at the Fixed Nitrogen Research Laboratory
- 1930-Jan-08
Two views of a thermocouple apparatus and assorted components, including a micro-spot welder and soldiering pencil, at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. …
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Apparatus for studying the mechanism of nitrogen fixation
- 1930-Jan-08
General view of an apparatus used for the spectroscopic study of the mechanism of nitrogen fixation in the electric arc at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington,…
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2 items
Assorted Urea Plant apparatus
- 1926-Apr
Two views of assorted apparatus at the Fixed Nitrogen Research Laboratory's Urea Plant. Urea is a water-soluble powder form of carbonic acid frequently used as a fertilizer and feed supplement. The individuals present…
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2 items
Dr. Kuentzel studying the thermal and catalytic decomposition of azomethane
- 1930-Jan-08
Two views of Dr. Kuentzel studying the thermal and catalytic decomposition of azomethane at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen…
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4 items
Apparatus for measuring the compressibility of gases
- 1926-Apr
Four assorted views of a thermostat and equipment used to determine the compressibility of gas at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. In chemistry,…
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30 items
The Palatine Fast Dyestuffs
- 1920
Sample book for Palatine fast dyes, a trade name for metal-complex dyes where chromium is incorporated into the dyestuffs molecule by the manufacturer. The process for Palatine fast dyes was achieved around 1915 by I.G.…
- Contributor General Aniline & Film Corporation
- Creator Of Work General Dyestuff Corporation
- Subject Colorfastness (Textiles), Interessengemeinschaft Farbenindustrie Aktiengesellschaft, Dyes and dyeing--Wool
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Arnold Beckman, Mabel Beckman, and William O. Baker at the Beckman Symposium on Biomedical Instrumentation at the Rockefeller University
- 1985-Apr-12
This photograph is tucked into an album of other photographs taken at the university, most of which lack detailed description.
The Beckmans and William O. Baker, posed in front of a painting, taken on the occasion of a…
- Photographer Gruttner, Ingbert
- Subject Beckman, Arnold O., Executives, Executives' spouses, Portraits, Group
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42 items
Benzo Colours on Cotton Yarn, Part II
- 1921
Part II of a sample book from Farbenfabriken vorm. Friedrich Bayer & Co.—the first incarnation of the modern pharmaceutical company Bayer AG established to manufacture and sell synthetic dyestuffs—containing mounted…
- Creator Of Work Farbenfabriken vorm. Friedrich Bayer & Co.
- Subject Dyes and dyeing--Yarn, Dyes and dyeing--Cotton
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3 items
Benzo Colours Fast to Light
- Undated
Contains a listing of available benzo color dyes.
- Subject Dyes and dyeing
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3 items
Letter from General Dyestuff Corporation to Albert Darbey
- 1934-Feb-01
Contains a listing of available para color dyes.
- Addressee Darbey, Albert
- Author General Dyestuff Corporation
- Subject Dyes and dyeing
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58 items
Benzo Colours on Cotton Yarn, Part I
- 1921
Part I of a sample book from Farbenfabriken vorm. Friedrich Bayer & Co.—the first incarnation of the modern pharmaceutical company Bayer AG established to manufacture and sell synthetic dyestuffs—containing mounted dyed…
- Creator Of Work Farbenfabriken vorm. Friedrich Bayer & Co.
- Subject Dyes and dyeing--Yarn, Dyes and dyeing--Cotton
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Plate 19: Pyrotechnic waterball with fiery rain
- 1660
- Engraver Brawe, Hermann
- Publisher Schwänder, Johann Georg
- Subject Ordnance, Explosives, Artillery, Fireworks
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Plate 23: Patterns for cutting fireball bags
- 1660
For mortar-fired fireballs.
- Engraver Brawe, Hermann
- Publisher Schwänder, Johann Georg
- Subject Ordnance, Explosives, Artillery
