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      Knowledge is Power

      Scientific American September 14, 1918

      Inventions New and Interesting- September 18, 1918

      A Department Devoted to Pioneer Work in the Arts

      • September 18, 1918

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      More in the September 14, 1918 issue of Scientific American
      • Correspondence- September 18, 1918
      • Strategic Moves of the War, September 4, 1918
      • World Markets for American Manufactures- September 18, 1918
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