Useful arts, including medicine, engineering, agriculture, domestic economy, commerce, chemical technology, manufactures, trades, and building, prepared by New York State Library and Library of Congress under auspices of American Library Association publishing board; editor, Melvil Dewey; associate editors, May Seymour, Mrs. H. L. Elmendorf; from class list, pt. 1, A. L. A. catalog, Oct. 1904.