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      Knowledge is Power

      Scientific American December 1967

      The Amateur Scientist

      An Indian mound is excavated by high school archaeologists

      • By C. L. Stong on December 1, 1967

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      More in the December 1967 issue of Scientific American
      • High-Energy Scattering
      • Zone Refining
      • Infectious Drug Resistance
      View Full Contents
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