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      Knowledge is Power

      Scientific American November 18, 1916

      The Testing of Automobile Motors

      Methods of Automobile Motors

      • By Ferdinand Jehle on November 18, 1916

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      More in the November 18, 1916 issue of Scientific American
      • A Vortex Hypothesis of World Formation
      • The Flying Service, from a Medical Point of View
      • Cumin—A Crop Valuable for the small Diversified Farm
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