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      Scientific American February 24, 1872

      Mining Speculation--Something as Applicable to New York as to London

      • February 24, 1872

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      More in the February 24, 1872 issue of Scientific American
      • Correspondence - February 24, 1872
      • Scientific and Practical Information - February 24, 1872
      • The Effect of Sound in Buildings, as Influenced by Ventilation
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