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      Knowledge is Power

      Scientific American September 29, 1866

      Polytechnic Association of the American Institute

      • September 29, 1866

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      More in the September 29, 1866 issue of Scientific American
      • Improved Boiler Feeder, An Iron Mountain in Sweden and more
      • Conarroe's Cane Knife and Stripper
      • Miscellaneous Summary
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