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      Knowledge is Power

      Scientific American December 20, 1919

      Is Germany Bluffing?, Germination of Grains and more

      • December 20, 1919

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      More in the December 20, 1919 issue of Scientific American
      • A Solid Fuel in Liquid Form
      • Swinging a 250-Ton Load, New British Trade-Mark Laws
      • Correspondence - December 20, 1919
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