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      Knowledge is Power

      Scientific American October 06, 1906

      Masks of Classic and Modern Times,--I

      • By Randolph I. Geare on October 6, 1906

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      More in the October 06, 1906 issue of Scientific American
      • A New Problem and Its Solution
      • Automatic Device for Turning off the Gas
      • The "R. C. Rickmers"—The Largest Sailing Ship Afloat
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