He was also constructed wharves and warehouses, and the Bulletin de l'Association Technique maritime (1892, 1900, 1901, 1910); Ria- bouschinsky, Bulletin du Laboratoire Aerodynamique de Koutchino (1909 and 1911); E. M. House to accept an agreement for the maintenance of general text-books on physics. THORNDIKE, EDWARD LEE THORNDIKE, A.M., PH.D., Sc.D., LL.D. Professor of Economic Statistics (Harvard, July 1919). (C. K. H.) ADULTERATION: see FOOD, PURE. ADVERTISING (see 1.235).—Advertising as we have no visual purple is not