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      Knowledge is Power

      Scientific American October 16, 1886

      A Method of Separating the Two Isomeric Toluidine-Sulphonic Acids

      • By E. A. Schneider on October 16, 1886

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      More in the October 16, 1886 issue of Scientific American
      • Capillary Attraction
      • French Pointers
      • Radii of Curvature Geometrically Determined
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