Glenn Joseph expresses appreciation for a tour of Beckman's Fullerton plant and the gift of a pH meter themed desk set.
In the 1930s, Joseph approached Beckman for assistance measuring pH for the citrus industry. The pH meter Beckman invented launched his career in scientific instrumentation.
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Joseph, Glenn H. “Letter from Glenn H. Joseph to Arnold O. Beckman,” November 26, 1954. Beckman Historical Collection, Box 10, Folder 12. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/8s45q963q.
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