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      Knowledge is Power

      Scientific American January 31, 1891

      The Trisection of any Angle

      • By Frederic R. Honey on January 31, 1891

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      More in the January 31, 1891 issue of Scientific American
      • A New Electric Ballistic Target
      • Newer Physiology and Pathology
      • The Composition of Koch's Lymph
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