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      Scientific American December 11, 1897

      On Computing the Radii of an Achromatic Objective

      • By Charles L. Woodside on December 11, 1897

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      More in the December 11, 1897 issue of Scientific American
      • Automatic Weapons
      • Large Hydraulic Riveter for Locomotive Boilers
      • Radius of Action of Electric Motor Carriages
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