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      Celebrate Math Awareness Month

      Scientific American August 16, 1873

      The Great Exposition--Letter from United States Commissioner Professor R. H. Thurston

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      More in the August 16, 1873 issue of Scientific American
      • Canadian Patents- August 16, 1873
      • Index of Inventions- August 16, 1873
      • Odorless Water Closet Attachment
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