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    Features

    The Hackensack Water Company

    The Grounding of the Neutral Wise in the Three-Wire System

    Position of the Planets in April

    An Improved Wool Drying Machine

    Twelve-Wheeled Freight Locomotives

    An Improved Feed Water Heater

    An Improved Elevated Railway

    An Improved Cigar Measure

    An Automatic Pump Regulator

    Photographic Notes

    A Draw Shell Lime Kiln

    Charles J. Van Depoele

    To Inventors

    Departments

    • Letters

      Correspondence- April 2, 1892

    • Departments

      Recently Patented Inventions- April 2, 1892

    • Business and Personal- April 2, 1892

    • Index of Inventions- April 2, 1892

    • Notes and Queries- April 2, 1892

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    April 02, 1892

    See the World from a Different Perspective

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