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      Knowledge is Power

      Scientific American March 1923

      The Service of the Chemist, March 1923

      A Department Devoted to Progress and Achievement in the Field of Applied Chemistry

      • By Ismar Ginsberg on March 1, 1923

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      More in the March 1923 issue of Scientific American
      • The Motor-Driven Commercial Vehicle, March 1923
      • When Electricity Magnifies the Speaker's Voice
      • Are Huge Aircraft Carriers Worth While?
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