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16 , THE MARINE REVIEW January, 1917 sme Wishing You Ne Xad A Happy Christmas A Glad and Bicrserous New Year 'Known throughout the Maritime World." The McNab Direction Indicators © (Gold Medal and Diploma Awards) indicate every move- ment and record the engine revolutions on the bridge. e ; e Thousands installed and specified for installation on 907% Circulation of steam vessels building in this country. NO STEAMER COMPLETE WITHOUT IT. equalizes strains--thus preventing leaks and broken stay bolts; it eliminates The Willett-Bruce S S. Whistle Control pitting, grooving, furrowing; it mini- The only control adopted by all Trans-Atlantic and other mizes scale formation--and reduces fuel Lines; large number of installations on order and installed consumption. in this country. An automatic fog signal assured; and a dry, clear, crisp, penetrating blast eee Eckliff Circulators The McNab P neumatic Engine Counter are guaranteed to create proper circula- ce ee up by ore and install it er your ib ree a pet tion and equalization of temperatures in per Oey et Sone Constant Cette Tedg an Scotch boilers. In hundreds of installa- small gear; it is a "revolution in counters." a ¥y s tions they are increasing boiler efficiency, The McNab "Cascade" Boiler Circulator saving fuel and cutting repair expense. an d Fuel E con omiz er They can do the same for your boilers-- . ' : 5 and a trial installation will prove it. Hundreds installed; a practical Circulator that does cir- culate and economize. Write for a full set of our books. THE McNAB Sagan Bridgeport, Conn. | WRITE TODAY FOR DATA AND BOOKLET ean om FeCRD.' 1501 a Exchange Bldg., Chicago, Ill, Eckliff Automatic Boiler Circulator Company RD, 465 California St., San Francisco, C . M. DRAKE, 17 Battery Place, N. ¥. City. Detroit 54 Shelby Street Michigan FIRE TUBE MARINE SUPERHEATER EIGHT REASONS WHY 5. It results in a saving of fuel over saturated plants, both operating under the same draft conditions, of 10% to 20%. 6. It reduces the maintenance costs by the prevention of water hammer, leaky flanges and con- densation in the cylinders. 1. It is adaptable to either new or existing boilers of the fire tube type and can be applied with no change in design or construction. 2. It renders possible an increase in output of boiler horse power from a given boiler plant, 10% to 20%. 3. It will produce the same power output with fewer boilers. 7. It does not prevent rapid, thorough and frequent cleaning of 4. It reduces the size of the the tubes. bunkers, thereby reducing the draft of the vessel with a given cargo or making possible an increase in revenue cargo. 8. Its construction provides easy access to all screwed joints and the easy removal of the parts. LOCOMOTIVE SUPERHEATER COMPANY 30 Church Street, NEW YORK, N. Y. Peoples Gas Bldg., CHICAGO, ILL. Have You Read the Classified Advertisements? Real bargains in Passenger and Freight Boats, Dredges, Tugs, Dredging Machinery, Engines, Boilers, Cranes, and other opportunities are awaiting you. Take a Look Now--You May Find Something Interesting 702 Please mention THE Marine Review when writing to Advertisers