In this memo, Jan Haagen-Smit includes a labeled photograph of the testing set-up for the Beckman oxygen electrode, which includes Beckman Oxygen Analyzers. The memo (but not the photograph) in this digitized image is a photocopy of the original.
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety, and preventing blindness in newborn babies.
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Haagen-Smit, Jan Willem. “Memo from Jan W. Haagen-Smit to John Leonard,” 1957. Beckman Historical Collection, Box 10, Folder 2. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/zg64tk96k.
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