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      Scientific American November 30, 1918

      A New Method of Separating Slate from Coal

      That Promises Important Economies

      • By H. M. Chance on November 30, 1918

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      More in the November 30, 1918 issue of Scientific American
      • Food Shortage and High Prices
      • Reinforced Metals
      • Weed Destruction in Sugarcane Fields
      View Full Contents
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