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      Knowledge is Power

      Scientific American November 1926

      The Scientific American Digest, November 1926

      A Review of the Newest Developments in Science, Industry and Engineering

      • By Albert G. Ingalls on November 1, 1926

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      More in the November 1926 issue of Scientific American
      • Our Point of View, November 1926
      • Patents Recently Issued, November 1926
      • The Fossil Bones of Early Man
      View Full Contents
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