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      Scientific American August 27, 1910

      What we know about the Earth.—II

      Many Puzzling Questions Answered by Science

      • By E. Weichert on August 27, 1910

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      More in the August 27, 1910 issue of Scientific American
      • Flood Drainage in Paris
      • Preservative Treatment of Farm Timbers
      • A Domestic Washing-Machine
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