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| From the New York Gazette and General Advertiser of January 1, 1800. |
hundred copies of a daily newspaper would severely tax the capacity of the press room. The weekly publications were as a rule limited to about the same figures, because the entire mechanical part of production devolved upon one man, who was often owner and editor as well as printer. Some iron presses were imported from England in 1810, and in 1817 George Clymer, of Philadelphia, 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 Boston, in 1822, and operated by-the American Bible Society, the power being furnished by a team of mules. These presses were not adapted to newspaper work, and the first considerable advance in the mechanical part of the business was made in 1829 and 1830, when a Washington hand press was invented. Seventeen years later a cylinder power press was perfected by Richard M. Hoe, and the mechanical ability to pro-
