i88 



POPULAR SCIENCE MONTHLY. 



January; 



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July. 



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From tiik Nicw Yokk Gazetpe and (Jknkkal 

 Advektiseu of January 1, 1800. 



ImiuliT'd copies of a daily 

 newspaper would severely 

 tax the capacity of the 

 press room. The weekly 

 })ublications were as a rule 

 limited to about the same 

 figures, because the entire 

 mechanical part of produc- 

 tion devolved upon one 

 man, who was often owner 

 and editor as well as 

 printer. Some iron presses 

 were imported from Eng- 

 land in 1810, and in 1817 

 George Clymer, of Phila- 

 delphia, invented a lever 

 press that was a marked 

 improvement over the 

 crude machines then in 

 general use, reducing the 

 manual labor required and 

 increasing the speed with 

 which printed papers could 

 be turned out. The first 

 power press used in this 

 country was invented by 

 Daniel Treadwell, of Bos- 

 ton, in 1822, and oper- 

 at(Ml by - the American 

 Bible Society, the power 

 being furnished by a team 

 of mules. These presses 

 were not adapted to news- 

 ])apcr work, and the first 

 considerable advance in 

 the mechanical part of the 

 business was made in 1829 

 and 1830, when a Wash- 

 ington hand press was in- 

 vented. Seventeen years 

 later a cylinder power 

 ])rcss was perfected by 

 "Richard l\r. TToe, and the 

 mechanical ability to pro- 



