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      Celebrate Math Awareness Month

      Scientific American August 12, 1876

      Car-Wheel Boring Machine

      Constructed by Messrs. W. B.Bement&Sons, Engineers,Philadelphia

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      More in the August 12, 1876 issue of Scientific American
      • The Artificial Production of the Crystalline Formation of Snow
      • The Radiometer
      • Brazil at the Exhibition
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