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    Features

    Test of a New Bridge by means of Elephants, at Bridgeport, Conn.

    By H. C. Hovey

    Are Townsmen or Countrymen the Healthiest?

    Postal Street Cars

    Coupling a Dynamo to a Car-Axle

    Photographic Notes- January 19, 1889

    The Deep Wells of Reading, PA

    A Foot-Shield for Pianos, Etc.

    Improved Lifting Cage for Mines

    Improved Double-Reciprocating Engine

    A New Screw Cutting Die

    Improved Pulsatory Wool Washing Machine

    An Improved Screw Driver

    An Improved Road Grader and Ditcher

    An Improved Can Opener

    The Bartlett Project for a Water Supply for Lower New York

    A Boy's Invention

    The Great Railway Bridge over the Firth of Forth

    Experiments in Capillary Force

    St. Louis to be a Seaport

    Apparatus for Compounding Rectangular Vibrations

    By M. Hopkins

    To Inventors- January 19, 1889

    Departments

    • Letters

      Correspondence- January 19, 1889

    • Recommended

      New Books and Publications- January 19, 1889

    • Departments

      Business and Personal- January 19, 1889

    • Recently Patented Intentions- January 19, 1889

    • Notes and Queries- January 19, 1889

    • Index of Inventions- January 19, 1889

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    January 19, 1889