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VOL. 36 CLEVELAND DECEMBER 5, 1907. NEW YORK No. 23 = WITH THE Rogers Steam Boiler Heater, Purifier, Oil Separator and Circulator The safest and surest warrant of true economy in boiler effort. This i effective device is used and commended by the leading engineers and owners for its efficiency, economy and simplicity. . Nete particularly here the tubes with scale removed. produced on a marine boiler after three months service of the Rogers' Purifier. Steamers Tuscarora Bethlehem Lighter Batavia Gratwick Northern Star Northern Light Minneapolis Huron Abraham Stearns Henry B. Hawgood Northland Green F.C. Ball Castalia Zillah Ed. Smith Heber Ward City of Buffalo Saranac Wilkesbarre P. P. Miller Grecian Northern King North Wind St. Paul Chas. Hebard Henry B. Smith Neff Hugh Kennedy No. 30 at G. L. E. W. L. C. Hanna Myron Buffalo (W. T. Co.) Seneca Mauch Chunk Clyde Corsica Northern Queen North Wave Wm. Castle Rhodes Capt. Thomas Wilson J. Q. Riddle Northwest Stafford Northwestern, N. Y. Wm. B. Davock Yale Bradley Mathew Andrews Manteo City of Erie Sheldon Parks New Steamers American S. B. Co. Hull No. 174 This effect for] Hull No. 156 Hull No. 626 Hull No. 441 Hull No. 357 Hull No, 521 Hull No. 74 Hull No. 75 Hull No. 76 Hull No. 176 Great Lakes E. W. Hull No. 31 Hull No 32 Hull No. 33 Hull No. 36 Hull No. 37 Hull No. 39 Hull No. 40 Hull No. 4t Hull No. 42 Hull No. 43 Toledo Ship Bldg. Co. Hull No, 111 New York S. B. Co., Camden, N.J. 3 Boilers No. 53 Newport News S. B. Co. Tug Ganoga at N.Y. Tug Mahanoy at N.Y. Write for circulars:of information %;, & fe 2 te