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    Features

    Harvard Observatory and the Henry Draper Memorial

    Exhibition of Train Telegraphy

    Railroad Men's Building

    Magazine Rifles

    Photographic Notes - October 15, 1887

    Valve Gear for Oscillating Engines

    An Improved Signaling Apparatus

    An Improved Fifth Wheel

    An Improved Household Ash Sifter

    An Improved Cutter Head

    An Adjustable Pitch Screw Propeller

    International Exhibition at Glasgow

    Machines for Making Packing Boxes

    The Regal Walnut Moth

    Agricultural Invention - October 15, 1887

    Miscellaneous Inventions - October 15, 1887

    Engineering Inventions - October 15, 1887

    To Inventors - October 15, 1887

    Departments

    • Recommended

      New Books and Publications - October 15, 1887

    • Departments

      Business and Personal - October 15, 1887

    • Index of Inventions - October 15, 1887

    • Notes and Queries - October 15, 1887

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    October 15, 1887

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