SMITHSONIAN INSTITUTION / SCIENCE PHOTO LIBRARY SMITHSONIAN INSTITUTION / SCIENCE PHOTO LIBRARY
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Professor Marechal, French chemist. Marechal was a Professor of Chemistry at the College de France in Paris. This photograph was distributed in connection with the 1925 joint meeting of the American Chemical Society (ACS) and the International Union of Pure and Applied Chemistry (IUPAC). Photographed circa 1925.
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