TO CORRESPONDENTS. Pictorial National Library. Russ Pavement. Patent Agency. following rates : TERM9:—CASH IN ADVANCE. FOR THE SCIENTIFIC AMERICAS. To Cotton Manufacturers. Premium for Back Numbers. GILROY'S American and Foreign Potent Agency ; Ballard's Improved Jack Screw. PREMIUM LETWER COPYING PRESS. Stave Dressing Machine. Tinner's Machines. Thredgold's Carpentry. Johnson & Robbins Consuiting Engineers and Counsellors tor Patentees. Agricultural Implements. Lap welded WroughtIron Tubes FOR TUBULAR BOILERS Johnson's Improved Shingle Machine. GENERAL PATENT AGENCY. A. W. Whitney To Mill


TO CORRESPONDENTS. Pictorial National Library. Russ Pavement. Patent Agency. following rates : TERM9:—CASH IN ADVANCE. FOR THE SCIENTIFIC AMERICAS. To Cotton Manufacturers. Premium for Back Numbers. GILROY'S American and Foreign Potent Agency ; Ballard's Improved Jack Screw. PREMIUM LETWER COPYING PRESS. Stave Dressing Machine. Tinner's Machines. Thredgold's Carpentry. Johnson & Robbins Consuiting Engineers and Counsellors tor Patentees. Agricultural Implements. Lap welded WroughtIron Tubes FOR TUBULAR BOILERS Johnson's Improved Shingle Machine. GENERAL PATENT AGENCY. A. W. Whitney To Mill Owners. Machinery. SPRING STYLE HATS. Important to the Public. Important to Builders and others., scientific american, 1848-06-24


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