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      Memorial Day Sale

      Scientific American December 11, 1880

      The Antiquity of Man in Eastern America, Geologically Considered

      • By Henry Carvill Lewis on December 11, 1880

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      More in the December 11, 1880 issue of Scientific American
      • The National Museum Washington— Cluss & Schulze, Architects
      • Decisions Relating to Patents
      • Apparatus for Continuous Diffusion
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