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      Scientific American September 28, 1907

      Cause of Vitiation of Confined Air

      How Ill Effects are Modified by Constant Ventilation

      • By Alfred Gradenwitz on September 28, 1907

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      More in the September 28, 1907 issue of Scientific American
      • Potassium Chloroplatinite for Photographic Use
      • Trade Notes and formulæ
      • Copper Mirrors
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