Scientific American Volume 77 Number 07 (August 1897) . Up-to-date dealers will se-cure terrilory. B^ Bor price and description, write_ ^ ^^ AMERICAN PULLEY CO.^.^.^^^ 18th and Hamilton Sts., Pbila., Pa ^ See Scientific American, Feb. 6,1897, page 84. TH E OOPYme TO MAKE and how to use; with an engraving. Practical directionshow to prepare the gelatine pad, and also the aniline inkby which the copies are made, how to apply the writtenletter to the pad, how to take off copies of the in Scientific American Supplement, F*rice lOcents. For sale at this office and
Scientific American Volume 77 Number 07 (August 1897) . Up-to-date dealers will se-cure terrilory. B^ Bor price and description, write_ ^ ^^ AMERICAN PULLEY CO.^.^.^^^ 18th and Hamilton Sts., Pbila., Pa ^ See Scientific American, Feb. 6,1897, page 84. TH E OOPYme TO MAKE and how to use; with an engraving. Practical directionshow to prepare the gelatine pad, and also the aniline inkby which the copies are made, how to apply the writtenletter to the pad, how to take off copies of the in Scientific American Supplement, F*rice lOcents. For sale at this office and by allnewsdealers in all parts of the country. COSTS NOTHING TO TRY ! All steam users can save ti me money and trouble with the simplest, safest and most in exist- [lence-the HETNTZ STEAM TRAPGuaranteed never towear out. Look at the^cut and see how itsdone! Pay me whatyou save in coal forone year and Ill furnish the trap free. [|^~ See Sci. Am. July 31,1897. Sole American Mf S. Haines, 144 S. Fifth St., Phila., HAWKINS New Catechism of Electricity A PRACTICAL TREATISE for Engineers. Electricians,Wiremen and Amateurs. 550 fiages, 300 illustrations, bound? leather, pocketbook form,Kold titles and edges. Strict-ly Up-to-Date. Postpaid,[$ Theo. AunEL & Co.,63 Fifth Avenue, New Tork.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectdevice, booksubjecttb
