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      Digital & 4-Year Archive

      Scientific American September 1888

      Geology

      The Crust of the Earth

      • By Archibald Geikie on September 1, 1888

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      More in the September 1888 issue of Scientific American
      • Double Action Steam Pile Driver
      • London Sewage
      • The Hemenway–Cushing Expedition
      View Full Contents
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