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1 [[underlined]] Provisional Plan of a Collection to Illustrate Chemistry and the Chemical Industries.[[/underlined]] By [[underlined]] Romyn Hitchcock [[/underlined]] The scheme here roughly outlined is presented merely to indicate the character and objects of a collection to illustrate chemistry and the chemical industries in the United States National Museum. The arrangement proposed is only provisional, to serve as a basis for systematic work, subject to such additions & modifications as experience may suggest. General Divisions A. Chemical Physics