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      Scientific American April 05, 1919

      Radium and Radio-Activity—II

      A Consideration of Some of the Physical and Chemical Aspects

      • By Charles H. Viol on April 5, 1919

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      More in the April 05, 1919 issue of Scientific American
      • Digestibility of artificially Dried Feed
      • Ocean Temperatures and Seasonal Weather in Southern California
      • The Testing of Cotton by Steaming
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