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August, 1917 THE MARINE REVIEW 85 Here’s the New “GREATER DAYTON?” Chipping and Calking Hammer TRY ONE AT OUR EXPENSE! Without doubt the latest development in pneumatic chipping and calking hammers. Has only 12 separate parts, | less than contained in any other hammer. Long bearing surfaces increase life of tool 50%. Simplicity in design and low cost of parts cut your repair bills in half. Workmanship and materials in every hammer guaranteed for one year. We also guarantee for life against break- age, the main valve —the vital part of every hammer. The largest shipbuilders, steel plants, foundries and railroads have found that the ‘“Greater Dayton’”” Hammers withstand the most severe and exacting tests and are the most efficient hammers yet produced. _‘Try one at our expense and if it does not prove to be more satisfactory, economical and efficient than any hammer you have ever used, return it at our expense. Made in several sizes. | 90% OF OUR SHIPMENTS MADE SAME DAY ORDER IS RECEIVED. WE ARE THE ONLY EXCLUSIVE MANUFACTURERS OF HAMMERS IN AMERICA. Write today for bulletin 30M DAYTON PNEUMATIC TOOL CO., Dayton, Ohio U. S. Metallic Packing i. FOR a: Marine Engine Piston Rods and Valve Stems The U. S. Metallic Packing Co., PHILADELPHIA, PA. Write for Catalog SKANDIA Marine Engine, 2 Cycle, Reversing Gear. 15 YEARS OF SERVICE Skandia Engines operate on crude or fuel oil—.55 to .6 Ib. of fuel per brake horse-power per hour guaranteed. The type shown here is made from 17 to 190 H. P. The speed gears are forged of Bessemer Steel and especially ma- chined. The ahead or astern run is obtained instantly and _re- liably in the simplest manner without an expert attendant. The reversing gears are thoroughly tested and run: before shipment. Fifteen years experience has proved this type of engine well adapted for average-size Towboats, Fishing Boats, and Auxiliary Sailing Vessels. PROVABLE FACTS— Be you want to experiment—you won’t be interested in the WAGER PATENT IMPROVED FURNACE BRIDGE WALL. BUT if you want a bridge wall that has in it five years of making good; a bridge wall that is turning the marine industry away from the antiquated fire brick; one that insures less smoke, minimum upkeep, greater efficiency and backed up by responsible references including all the leading railroad, freight and passenger steamer companies, private yacht owners, stationary plants and others—you WILE be interested in the WAGER BRIDGE. : : This isn’t argument, or persuasion, or contention. It’s just simple, provable facts. May we prove these facts to you? ROBERT H. WAGER Lakes, Gulf and Atlantic Coast Agents, H. S. JOHANNSEN, 50 Church St., New York Pacific Coast Agents: Northwest Representative: Skandia Pacific Oil Engine Co., San Francisco. Skandia Engineering Co., Seattle FURNACE BRIDGE WALLS New York Philadelphia Detroit hh. TD. wi WO) yo W New York Office: Singer Building - - Telephone: Cortlandt 4299 — es Please mention THe Marine Review when writing to Advertisers