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      Scientific American November 13, 1886

      Radii of Curvature Geometrically Determined

      No. VI.—the Ellipse

      • By C. W. MacCord

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      More in the November 13, 1886 issue of Scientific American
      • Sibley College Lectures.—1886-87
      • How to Ship Apples to Europe
      • Silver and Lead Smelting in Colorado
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