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      Knowledge is Power

      Scientific American July 09, 1921

      Weapons at Sea

      The Place of Aircraft and the Battleship

      • By E. G. Allen on July 9, 1921

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      More in the July 09, 1921 issue of Scientific American
      • A Chat with Madame Curie
      • Electricity, Science, Aeronautics
      • Recently Patented Inventions
      View Full Contents
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