Established 1846 The Oldest Agency for Soliciting Patents in the United States. TWEET Y-EIGHT YEARS' EXPERIENCE. DUNN & CO. 37 Park Row N. Y. Washington D. C. POPE BRO'S Mfrs W. C. DUYCHINCK WHIPPLE'S PlOYE'S Mill Furnishing Works Niagara Steam Pump Works CHARLES B. HARDICK BROOKLYN N. Y. THE BEST INJECTOR 108 Liberty St. Newitork. STEAM BOILER COMPANY. J. B. Paws Sw. HARTFORD .CONN. The Standard—Best Stock—Finest Finish. BOLT CUTTERS. Wood & Light Machine Co. Worcester M ass. Als Shafting Pulleys &C. Railway Machinists' and En EXTRA ELEA VT AND IMPBOVED PATTERNS. LIJCIITS W. POND
Established 1846 The Oldest Agency for Soliciting Patents in the United States. TWEET Y-EIGHT YEARS' EXPERIENCE. DUNN & CO. 37 Park Row N. Y. Washington D. C. POPE BRO'S Mfrs W. C. DUYCHINCK WHIPPLE'S PlOYE'S Mill Furnishing Works Niagara Steam Pump Works CHARLES B. HARDICK BROOKLYN N. Y. THE BEST INJECTOR 108 Liberty St. Newitork. STEAM BOILER COMPANY. J. B. Paws Sw. HARTFORD .CONN. The Standard—Best Stock—Finest Finish. BOLT CUTTERS. Wood & Light Machine Co. Worcester M ass. Als Shafting Pulleys &C. Railway Machinists' and En EXTRA ELEA VT AND IMPBOVED PATTERNS. LIJCIITS W. POND. MANUFACTURER. Woreeoter Mass. IRON PLANERS New Haven. Conn. Saws and Lathe. Box 2044. Portland Cement. New Orleans Portable 3 THE NATIONAL Steel Tube Cleaner. COVERING WITH AIR SPACE IMPROVEMENT. SCIENTIFIC AMERICAN IN THE WORLD. THIRTIETH YEAR. VOLUME XXXIIINEW SERIES 1875 a new volume commenced. It ifl continue to be the aim of the pubtishers to render the con ful than any of its predecessors. To the Mechanic aind Manufacturer. engravings of new machines and inventions which cannot be found in any other publication. The SCIENTIFIC AMERICAN is devoted to the interests of Popular Science the Mechanic Arts Manufactures Inventions AgricultureCommerce and the industrial pursuits generally ; and it is val uable and instructive not only in the Workshop and Manufactory but also in the Household the Li orary and the Reading Room. TERALs. One copy of Scientific American for one One copy of Scientific American for one year and one copy of 'Science Record' Remit by postal order draft or exprese. dere and drafts payable t HE ' Scientific American' is printed with Printing ROOTS' PATENT PORTABLE FORGE. 0 ADAPTED T EVERY VARIETY OF WORK. THE ONLY FORGE WITH FORCE BLAST BLOWER THE ONLY EFFECTIVE FORGE MADE., 1875-09-18
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