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Freehand drafting: By Anthony E. Zipprich, Instructor of Mechanical Drawing, Mechanics Institute, New York; formerly Instructor of Industrial Drawing, Brooklyn Navy Yard Apprentice School, with introduction by Carl L. Svensen, ME, Professor of Engineering Drawing, Ohio State University. xii+ 131 pages, 6 ″× 9 ″, cloth, 71 illustrations. New York, D. Van Nostrand Company, 1924. Price, $1.60 net.