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TAE Marine REvIEw 9 . 100 SCHERZER ROLLING LIFT BRIDGES have already been built, superseding and replacing swing bridges and other old types of movable bridges for rail- roads, electric railways and highways in the most progressive cities and harbors of the world. Modern Highway and Electric Railway Scherzer Roll- ing Lift Bridge open for the passage of large vessel FH i GH ES T A WAR D World's Fair, St. Louis, 1904 Superseded and replaced a center pier swing bridge. "Center pier swing bridges form artificial obstruc- tions, blocking navigation and commerce. They are condemned, removed and replaced by modern SCHERZER ROLLING LIFT BRIDGES wherever Manufacturing, Commerce, Transportation, Railroads and Ships are valued, protected and advanced." Write us for photographs, information, sketches and estimates THE SCHERZER ROLLING LIFT BRIDGE COMPANY E Main Offices: Monadnock Block, Chicago, U. S. A. Modern Railroad Scherzer Rolling Lift Bridge in the ° = open position. Longest span Bascule Bridge in the s _ page ee : ' Eastern Office: y world. Also Highway Scherzer Rolling Lift Bridge cherzer, icago |220 Broadway, New York open further down the river. SUBMARINE SIGNALS HE United States Government and the Canadian Government have arranged to send submarine signals from every important lightship in North ivi A Re i RE E Ri oO D E LS American waters--This includes : River St. Lawrence, OUR SPECIALTY The Atlantic Coast, We make full, half models and sections of every- The Gulf of Mexico, thing from'a dingy to a battleship. | The Pacific Coast, DUPLICATE YOUR BEST VESSELS . _ The Great Lakes. Fittings furnished to complete plating models a Signals are also in operation in Ger- for exhibition purposes. many, England, France and Denmark.. Working or dummy models of Engines, Boilers, ve : b Dredges and Special Machinery of every descrip- Vessels equipped to receive sub- tion. marine signals by the Write for illustrated catalog of work done for the government and leading lines. The H. E. Boucher Mfg. Co. 93 Maiden Lane NEW YORK, U. S. A. Submarine Signal Co. Boston, Mass.