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      Knowledge is Power

      Scientific American October 16, 1920

      Transportation in the Oil Fields, The Gordon-Bennett Airplane Race and more

      • By Edmund Conaway on October 16, 1920

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      More in the October 16, 1920 issue of Scientific American
      • Concerning Back Numbers, Propping Fruit Trees with Staples
      • Recently Patented Inventions
      • Concrete and the Building Crisis
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