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      Scientific American April 17, 1886

      Radii of Curvature Geometrically Determined

      • By C. W. Maccord on April 17, 1886

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      More in the April 17, 1886 issue of Scientific American
      • An Improved Appliance in Physiological Treatment of Cleft Palate
      • Du Rocher's Electric Megaloscope and Pile
      • Isaac Newton
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