Search Results
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Cliffs Dow plant in Marquette, Michigan
- After 1934 – before 1970
General view of a section of the interior of the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic, ethylcellulose, the Dow Chemical Company joined…
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Cliffs Dow plant in Marquette, Michigan
- After 1934 – before 1970
General view of a section of the exterior of the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic, ethylcellulose, the Dow Chemical Company joined…
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Cliffs Dow plant in Marquette, Michigan
- After 1934 – before 1970
General view of a section of the exterior of the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic, ethylcellulose, the Dow Chemical Company joined…
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Cliffs Dow plant in Marquette, Michigan
- After 1934 – before 1970
General view of a section of the exterior of the Cliffs Dow wood distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic, ethylcellulose, the Dow Chemical Company joined…
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18 items
Early Beckman facilities, Pasadena and South Pasadena
- Undated
- 1934 – 1935
- 1940
- 1946
- 1949
- 1950
A Pasadena garage was the first home of the National Postal Meter Company, founded by Arnold Beckman in 1934. The company soon became National Technical Laboratories, with a focus on pH meters. In 1935, the company…
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2 items
Beckman Quinhydrone pH Meter
- 1935 – 1940
The quinhydrone electrode in this instrument was an alternative to Beckman's glass electrode. Quinhydrone electrodes are not reliable at measuring a pH greater than 8, at measuring solutions with strong oxidizing or…
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4 items
Beckman pH Meter (Glass Electrode) brochure
- 1935 – 1940
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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3 items
Beckman pH Meter (Industrial Model) brochure
- 1935 – 1940
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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3 items
Beckman pH Meter (Laboratory Model) brochure
- 1935 – 1940
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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2 items
Diamond Blue-White fabric dye
- After 1935 – before 1942
Blue and white cardboard box with a small paper packet of powdered fabric dye. The dye is intended for use on white fabric to enhance the fabric's brightness and prevent yellowing.
Fabric dyes are charged,…
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German aircraft featuring Plexiglas
- 1935 – 1945
General view of a German aircraft with a Plexiglas windshield and nose panels. Per notations accompanying the photograph, the plane is identified as a Heinkel-Flugzeug HE 111, a type of bomber designed to masquerade as…
- Creator Of Work Rohm and Haas Company
- Subject Heinkel 111 (Bomber), Rohm and Haas Company, Airplanes, Military, Third Reich, Corporations, Plexiglas
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Glenn Seaborg in schoolgroup portrait
- After 1935 – before 1945
Black and white photograph of a group of students posing for the camera. Glenn T. Seaborg (1912-1999) is located in the back row, fourth from the left.
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New! Inexpensive continuous pH measurements with the Beckman glass electrode equipment!
- Bulletin No. 17
- 1935 – 1940
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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2 items
Bausch & Lomb Abbe Refractometer
- 1937 – 1941
A: Refractometer
Instrument has round base with black finish; on the base is a double-sided circular glass mirror mounted to allow full rotation; a black pillar supports the prism alidade, the black brass cylindrical…- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Refractometers, Optics
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Max Bredig seated in office
- After 1937 – before 1949
Black and white photograph of Max Bredig (1902-1977) seated at a desk in an office at the University of Michigan. Max emigrated from Germany to the United States with the assistance of Kasimir Fajans (1887-1975) to…
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2 items
Miller's 50% DDT Wettable
- After 1937 – before 1969
Miller's brand pesticide can with black and yellow text on red, yellow, and green label. Butterfly and landscape graphics.
- Subject Pesticides, DDT (Insecticide), Insecticides
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15 items
Post office mailing receipts
- 1937 – 1945
Receipts for mailed packages from 1939-1945, postmarked in New York City, New York, Ann Arbor, Michigan, and Pittsburgh, Pennsylvania. Likely receipts for packages sent by Max Bredig (1902-1977) to friends and family in…
- Creator Of Work United States Postal Service
- Subject Bredig, Max Albert, 1902-1977, Shipping, United States Postal Service, Postal service
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2 items
Symmetrical series table constructed as a triangle
- 1937 – 1945 (Original design)
- Circa 1957 (Date attributed to slide)
Graphic representation of the periodic table of chemical elements constructed as a triangle. This type of table was originated by Henry A. Wagner and Harold Simmons Booth in 1945 after an incomplete drawing by Emil V.…
- Creator Of Work Mazurs, Edward G.
- Subject Scientific illustration, Periodic table of the elements, Periodic law, Chemical elements
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62 items
Gilbert Glass Blowing Manual
- 1938 – 1954
Manual for introductory level glassblowers, especially middle to high school-aged boys. Includes experiments, projects, and information about glass and glassblowing.
- Publisher A.C. Gilbert Company
- Subject Glass blowing and working, Chemistry sets, A.C. Gilbert Company
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2 items
Gilbert Microscope Set No. 20
- 1938 – 1960
Green wooden case with textured green paper surface; label on front of case features a young boy looking through a microscope and an enlarged image of a dog flea; metal latch opens double-sided interior. 16 glass test…
- Manufacturer A.C. Gilbert Company
- Subject Chemistry sets, Microscopes, A.C. Gilbert Company
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2 items
Naturalization Halted
- After 1938 – before 1944
Article (lower right) Naturalization Halted, reports that German and Italian immigrants are now considered to be "Enemy Aliens" in the United States and will no longer have access to naturalization. 450,000…
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6 items
Affidavits of Support from Max Bredig for Victor and Marianne Homburger
- 1938-Dec – 1940-Nov
Affidavits of support from Max Bredig (1902-1977) for his sister, Marianne Homburger (1903-1986), and his brother-in-law, Victor Homburger (1888-1968). The affidavits include a written portion and a form, which contains…
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4 items
National Technical Laboratories staff
- 1938-Dec
- 1939-Dec
- 1940
The series of photographs depicts employees of National Technical Laboratories.
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Double flask for demonstrating anaerobic fermentation
- 1939 – 1967 (Date span attributed to photograph)
Photograph of a double flask used by French biologist, microbiologist, and chemist Louis Pasteur (1822-1895) to demonstrate anaerobic fermentation, as displayed at the Pasteur Institute in Paris. Per notations…