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      Scientific American June 29, 1907

      Experiments for Detecting Food Adulterants

      • By Gilbert H. Trafton on June 29, 1907

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      More in the June 29, 1907 issue of Scientific American
      • Canal Rays or Rays of Positive Electricity
      • Galera, a Lost City of the Campagna
      • The Amateur's Foundry
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