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      Scientific American June 1918

      Leveling and Pulverizing as Furrow is Turned

      • By P. B. Potter on June 1, 1918

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      More in the June 1918 issue of Scientific American
      • The German Flying Tank, Closing the North Sea, and more
      • The Heavens in June, 1918
      • Bullet Versus Armor
      View Full Contents
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