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      Memorial Day Sale

      Scientific American May 24, 1884

      Notes Upon Geological Explorations and Surveys in the Far West

      • By L. P. Gratacap on May 24, 1884

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      More in the May 24, 1884 issue of Scientific American
      • Ancient Copper Implements from Mexico
      • How to Grow an Oak in a Glass of Water
      • Nickel Plating on Zinc
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