Search Results
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Mounted French postage and semipostal stamps depicting Louis Pasteur
- 1922 – 1936
Nine small postage stamps in various denominations issued in commemoration of the 100th anniversary of the birth of Louis Pasteur in 1922. The large semipostal stamp was issued in 1936 and includes a surtax for the…
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Original site of National Technical Laboratories
- 1930s
This garage was the first location of the National Inking Appliance Company, founded by the National Postal Meter Company in 1934 to manufacture the new, nonclogging inking device invented by Arnold O. Beckman. This…
- Subject Buildings, Garages, Beckman Instruments, Inc.
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Aerial view of the Dow Chemical Company
- 1936 – 1937
Aerial view of the Dow Chemical Company plants and facilities located in Midland, Michigan. This photograph was taken by H. H. Harris, President of the General Alloys Company of Boston and amateur photographer who…
- Creator Of Work Dow Chemical Company
- Photographer Harris, H.H.
- Subject Aerial views, Industries, Dow Chemical Company, Aerial photographs
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Physical Testing Laboratory View #3
- 1930s – circa
General view of the Physical Testing Laboratory located in the Educational Buildings at the Dow Chemical Company facility in Midland, Michigan.
- Creator Of Work Dow Chemical Company
- Subject Laboratories, Dow Chemical Company, Scientific apparatus and instruments
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Calibration of a McLeod Gauge
- 1930s
The McLeod Gauge measures very low pressures of gasses. Its presence in this collection indicates that it was used during the production of Beckman Instruments' early pH meters. These calibrations may have been written…
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Letter from Arnold O. Beckman to Dr. L. H. Duschak
- 1936-May-13
In this letter, Beckman confirms that Duschak can indeed use one of the new "acidimeters" and return it to National Technical Laboratories afterwards. This letter also reveals that during the initial production of the…
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Portrait of John Van Nostrand Dorr (1872-1962)
- 1930s
Portrait of John Van Nostrand Dorr (1872-1962). In partnership with John Lundberg and A.D. Wilson, Van Nostrand Dorr owned the Lundberg, Dorr, & Wilson gold & silver mining operation in Terry, South Dakota. In 1916, he…
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Letter from Otto Hahn to Jean Gerard
- 1936-Apr-04
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Portrait of Leo Hendrik Baekeland (1863-1944)
- After 1920 – 1944
Portrait of Leo Hendrik Baekeland (1863-1944), inventor of Bakelite, the first fully synthetic plastic.
- Manufacturer Underwood & Underwood
- Subject Portrait photography, Inventors, Bakelite, Baekeland, L. H. (Leo Hendrik), 1863-1944, Plastics
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Portrait of Carroll A. Hochwalt (1900-1987)
- 1930s
Portrait of Carroll A. Hochwalt (1900-1987). Hochwalt worked as a chemical engineer for the General Motors Corporation before co-founding Thomas & Hochwalt Laboratories in partnership with Charles Allen Thomas in 1926.…
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Professor Wohler
- After 1840 – before 1940
A half-length portrait of Friedrich Wöhler (1800–1882), a German chemist.
- Artist Cook, Conrad
- After L'Allemand, Conrad, 1809-1880
- Subject Wöhler, Friedrich, 1800-1882
