September, 1926 MARINE REVIEW Channel Steel—World’s Strongest Hulls Recently Completed All Steel Channel Dump Scow for Frontenac Dredging Co., Toronto, Ont. Positive Caulked Joint. Rivet Pitch 6-inch Centers. Built by Canadian Locomotive Company, Canadian Representatives Kingston, Ont. Canada Designed and Patented by Louis Henley, Rome, N. Y., sole owner of the United Hae: and Canadian Patents, by whom designs will be furnished and builders icensed. W. G. Bartenfeld, Great Lakes Representative, Lorain, Ohio Channel Steel Barge Co., Rome, N. Y. SHERIFFS MANUFACTURING CO. PROPELLER 85% MAGNESIA PIPE AND BOILER COVERINGS BRINE AND AMMONIA INSULATION, ETC. WHEELS Z and = PROPELLER BUuADES to fit any hub. IMMEDIATE DELIVERY AND SERVICE P. S. THORSEN & CO., INC. INSULATION ENGINEERS AND CONTRACTORS 81 COFFEY ST. BROOKLYN, N. Y. PHONE HENRY 3081-3082 MILWAUKEE, WIS. STROMBOS SUPERPOWERFUL MARINE SIGNALS Operate on 10 to 100 lbs. air pressure. Made of Brass and Bronze in 15 Models and tones. PENETRATE AND DOMINATE ALL NOISES. Heard from SIX to EIGHT MILES. Require 1/10 the air used in all other signals, pro- ducing greater volume of tone. Nothing inside to get out of order—No moving parts, repairs or attention required. BEWARE OF INFERIOR STROMBOS SIGNALS ON THE MARKET. AMERICAN STROMBOS COMPANY, Inc. 18th AND MARKET STS. io PHILADELPHIA, PA. Valuable territory open to Dealers W.H.MORETON CORP., MARINE EQUIPMENT & SUPPLY CO., 780 Common weal:h Ave. 116 Walnut St., Boston, Mass. Phila., Pa. W. & J. TIEBOUT 118 Chambers St., New York City Please mention MARINE REVIEW when writing to Advertisers