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The Coal-Tar Colors, with Especial Reference to Their Injurious Qualities and the Restriction of Their Use: A Sanitary and Medico-Legal Investigation. BY THEODORE WEYL. Translated, with permission of the author,by Henry Leffmann, M.D., Ph.D. Philadelphia, P. Blakiston,Son,& Co

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Science  05 May 1893:
Vol. ns-21, Issue 535, pp. 248-249
DOI: 10.1126/science.ns-21.535.248

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