View of chemist James Feeman using a Beckman Model DU (Ultraviolet/Visible) Spectrophotometer in the Research Laboratory at the Althouse Chemical Company plant in Reading, Pennsylvania. Other laboratory apparatus visible in the photograph include (from left to right) a paper chromatography jar, a microscope and lamp, an ultraviolet light box, and an Analytical Balance No. 35 made by Henry Troemner.
Based in Reading, Pennsylvania, the Althouse Chemical Company was founded in 1915 by C. Scott Althouse (1880-1970) as a small, family-owned firm specializing in fabric dyes of a superior quality and class. In 1954, the Crompton & Knowles Corporation of Worcester, Massachusetts acquired Althouse, which continued to operate as a division of Crompton & Knowles and a leader in the specialty dyes industry.
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“Beckman Model DU Spectrophotometer in Use at Althouse Research Laboratory,” 1951. Photographs from the Records of the Althouse, Bates, and Crompton Chemical Companies, Box 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/dz010q07r.
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