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Photographs

Wallace and Joseph Coulter, seated

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Wallace H. Coulter (1913-1998) enumerated the Coulter Principle for counting and sizing particles suspended in a fluid. He patented the Coulter Counter for blood cell analysis in 1953.

Joseph R. Coulter, Jr. (1924-1995) co-founded Coulter Corporation with his brother, Wallace, in the 1950s. The company was acquired by Beckman Instruments in 1997.

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  • 14 in. W x 11 in. L
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  • Courtesy of Science History Institute

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Series arrangement
  • Series X. Photographic Materials
  • Sub-series 3. Photo Albums
Physical container
  • Box 90, Folder 10

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“Wallace and Joseph Coulter, Seated,” n.d. Beckman Historical Collection, Box 90, Folder 10. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/q237hs128.

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