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12: The Marine REVIEW So long as there is water to feed, the U. S. Automatic In. jector will keep your boiler supplied. It is positively auto. matic. Operates at lower steam pressure and works to higher than any other. 100 percent efficiency ---and absolutely no waste.' Saves work for the engineer---saves money for the owner. Investigate and you will surely buy 300,000 He Engineers Friction Devils | | Aurfomatic Driven Into The Sea Marine engineers and large vessel owners recog- ] aS e nize theabsolute supremacy of U.S. G. Co's Graphite nh oe C or 5 Lubricants over all others for engine rooms. and ship's ma- &@ @ J chinery. Two of these, unequalled and indispensible are : ie \ U. S. 6, Co's No, 205 Lubricating Graphite Se ee the weme "U.5-" Insist' on the U. $. G. Co's Mexican Graphite Cup Grease The former is a pure, soft graphite powder--not "flake" but air-floated and gritless- very adhesiveand working at all temperatures and under all frictional pressures. Mixes readily with oil and remains suspended therein sufficiently long to feed through lubricator tubes without clogging. The Cup Grease is a combination of mineral lubricating oils carrying just the right proportion No. 205 Lubricating Graph- ite and is made in four consistencies suitable for every use. Result-- smooth, mirrorlike, almost frictionless bearing surfaces, always cool with minimum attention. For 20c in postage we will send once only to "'the interested man" a one-pound canof either of these, or for 40c to pay post- age, two one-pound cans (one ofeach). Ask for Booklet B-2. Address, it is your Certificate of Range and Capacity; i is guarantee of satisfaction. The "'U. S." Auto- matic can be bought from your dealer. Engineers' Reliable Red Book, Free This book is invaluable to every steam user. The information it contains is accurate, prac- tical, dependable. A postal card will bring a copy to you free. AMERICAN INJECTOR CO. DETROIT, MICH. Makers of "Moon" Automatic Grease Cups, "Never Fail'? Crank Pin Oilers, and full line of Water Heaters, Ejectors, Fire Plugs, etc. THE UNITED STATES GRAPHITE CO. SAGINAW, MICH., U. S.A. Ashton Highest Grade Pop Safety Valves and Steam Gages Guaranteed to give | Unequalled Efficiency, Durability and Perfect. Satisfaction. Special Features in valves. Outside Pop Regulation. Ei | Cam Lever Attachment, Jessops Steel Spring. Gages have > Non-=Corrosive Movements. Accurately Graduated Dials. Seamless Drawn Springs. Specify the Ashton and eck the Best. THE ASHTON VALVE COMPANY. 271 Franklin St... BOSTON, MASS Branches : New York. Chicago. Philadelphia. San Francisco.