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      Knowledge is Power

      Scientific American January 27, 1894

      The Purification of Water by Precipitation and Sedimentation

      • By Percy Frankland on January 27, 1894

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      More in the January 27, 1894 issue of Scientific American
      • The Pecten or Scallop
      • Alloys
      • Laussedat's Hemiperiscopic Camera Lucida
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