Department and Other Reports Received Fire Officials Conference—Proceedings of the ninth annual meeting, Toledo, Ohio, April 24-26, 1923; 152 pages and cover, illustrated. Interior Department, U. S. Geological Survey—Mineral Resources of the United States, 1920, No. 2, Non-metals; 529 pages in board covers, illustrated with maps. Richmond, Va.—Annual message of the mayor for the year 1922, 38 pages and cover. Washington State Firemen’s Association—Proceedings of the first annual convention at Bellingham, Wash., May 10 and 11, 1923; 32 pages and cover. Indiana Sanitary and Water Supply Association—Proceedings of the sixteenth annual convention, Indianapolis, February 14 and 15, 1923; 121 pages and cover, illustrated. Western Actuarial Bureau, Fire Prevention Department, Chicago, Ill.—The Fire Plug, for December, 1923; four pages.