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December, 1916 owe Ne Xa “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. Thousands installed and specified for installation on 90% of steam vessels building in this country. NO STEAMER COMPLETE WITHOUT IT. The Willett-Bruce S. S. Whistle Control The only control adopted by all Trans-Atlantic and other Lines; large number of installations on order and installed in this country. An automatic fog signal assured, and a dry, clear, crisp, penetrating blast guaranteed. The McNab Pneumatic Engine Counter Connect it up by a pipe and install it on your steam gauge board; do away with your constant clattering rods and small gear; it is a “revolution in counters.” The McNab ‘‘Cascade’’ Boiler Circulator and Fuel Economizer Hundreds installed; a practical Circulator that does, cir- culate and economize. Write for a full set of our books. THE McNAB COMPANY, Bridgeport, Conn. or EDW. P. FARLEY, 1501 Railway Exchange Bldg., Chicago, Ill. D. E. FORD, 465 California St., San Francisco, Cal. M. M. DRAKE, 17 Battery Place, N. Y. City. 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. 4. It reduces the size of the bunkers, thereby reducing the draft of the vessel with a given cargo or making possible an increase in revenue cargo. 30 Church Street, NEW YORK, N. Y. FIRE TUBE MARINE SUPERHEATER EIGHT REASONS WHY Sheng ERR ETON TT one LOCOMOTIVE SUPERHEATER COMPANY THE MARINE REVIEW 17 Eckliff Automatic Boiler Circulators “Watch'‘the Thermometer” Can Your Repair Expense Stand A Reduction? Isn't the item of Repair Expense on your Scotch boilers one that you would be glad to reduce ? Well, the surest way to cut it to the minimum is to get circulation and equalization of temperatures of the water in your boilers. Eckliff Circulators create perfect circulation and equalized temperatures— and that means the elimination of pitting, grooving, furrowing, corrosion leaky seams, breaking stay bolts and other conditions that are now helping to make your Repair Expense too high. Why not reduce that Repair item ? the booklet. WRITE TODAY FOR DATA AND BOOKLET Eckliff results are guaranteed. Get Eckliff Automatic Boiler Circulator Company DETROIT 54ShelbyStreet | MICHIGAN Create and “Watch the Thermometer’ Maintain Perfect 242 e e Circulation 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. © 7. It does not prevent rapid, thorough and frequent cleaning of the tubes. IY) } 8. Its construction provides easy | _ | access to all screwed joints and the _] easy removal of the parts. 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