E. S. Ritchie & Sons Brookline Mass. For Rich Pressures WATER MOTORS WORKS AT 150 TO 250 LB& STEAM as easily as OUR STOCK INJECTOR AT 25 TO 150 LBS. P ENBERT HY INJECTOR CO. SYCAMORE CASE Inch Tempered Rules GAS ENGINES &VENTILATING FANS CREWS Machine Serowe f or electrical purposes. Sample box free. BRIDGEPORT CONN. Also 4 inch Narrow and Center Gage. P. P. until Sept. 1st for Sawyer 'fool Co. Athol Mass. Durable—Easily Applied. from natural Trinidad asphalt and become brittle under ex WAILREN CHEMICAL .; MFG. C 83 Fulton Street New Y ork C. S. A FOR BICYCLE MANUFACTURERS QUINT'S


E. S. Ritchie & Sons Brookline Mass. For Rich Pressures WATER MOTORS WORKS AT 150 TO 250 LB& STEAM as easily as OUR STOCK INJECTOR AT 25 TO 150 LBS. P ENBERT HY INJECTOR CO. SYCAMORE CASE Inch Tempered Rules GAS ENGINES &VENTILATING FANS CREWS Machine Serowe f or electrical purposes. Sample box free. BRIDGEPORT CONN. Also 4 inch Narrow and Center Gage. P. P. until Sept. 1st for Sawyer 'fool Co. Athol Mass. Durable—Easily Applied. from natural Trinidad asphalt and become brittle under ex WAILREN CHEMICAL .; MFG. C 83 Fulton Street New Y ork C. S. A FOR BICYCLE MANUFACTURERS QUINT'S TURRET DRILLS Westcort Chuck Co Oneida. N. Y. U. S. A. PRIEM AT COLUMBIAN EXPORITION1823., scientific american, 1896-08-08


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