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      May 22, 1880The Sciences

      Index of Inventions - May 22, 1880

      April 13, 1878The Sciences

      Index of Inventions

      February 16, 1856The Sciences

      Enormous Railroad Scale

      February 16, 1856The Sciences

      List of Patent Claims

      May 12, 1894The Sciences

      Index of Inventions - May 12, 1894

      February 1, 1964The Sciences

      Science and the Citizen: February 1964

      September 15, 1883The Sciences

      Index of Inventions

      April 25, 1885The Sciences

      Index of Inventions - April 25, 1885

      For which Letters Patent of the United States were Granted April 7, 1885, and Each Bearing That Date.[See note at the end of list about copies of these patents.]
      June 16, 1888The Sciences

      Index of Inventions - June 9, 1888

      October 1, 2006Mind & Brain

      Exposing Lies

      Inventors claim that new technologies can ferret out fibbers, but it is unclear what the gear actually reveals
      November 7, 1903The Sciences

      Index of Inventions - November 7, 1903

      October 29, 1881The Sciences

      Index of Inventions

      Letters Patent of the United States were Granted in the Week Ending
      December 18, 1886The Sciences

      Index of Inventions - December 18, 1886

      For which Letters Patent of the United States were GrantedNovember 30, 1886, And Each Bearing That Date. [See note at end of list about copies of these patents.]
      September 1, 1989Environment

      Threats to Biodiversity

      Habitat destruction, mostly in the tropics, is driving thousands of species each year to extinction. The consequences will be dire-unless the trend is reversed
      May 22, 1869The Sciences

      Official List of Patents

      Issued by the United States Patent Office
      April 1, 1865The Sciences

      Books and Publications

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