Four-page promotional booklet advertising various raw materials manufactured and sold the Hercules Powder Company for a range of industrial applications, including pine and paper chemicals, synthetics, pigments, polymers, and cellulose.
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Hercules Incorporated. “For Chemical Progress.” 1940 Hercules Advertisements, 1940. Records of Hercules Incorporated, Volume 1940. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/zc77sq83g.
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