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    Features

    New Dynamite Gun

    "A Possible Revolution in Medicine"

    Dogs that Learn Trades

    An Improved Churn

    Simple Experiments in Physics

    By M. Hopkins

    An Improved Extension Ladder

    An Improved Steam Steering-Gear

    The Garabit Viaduct

    Offset Mechanism for Sawmill Carriages

    A Simple Device for Threading Needles

    Test of the Cast Steel Breech Loading Rifle

    Gigantic Fossil Mammals

    To Inventors- December 29, 1888

    Departments

    • Recommended

      New Books and Publications- December 29, 1888

    • Departments

      Business and Personal- December 29, 1888

    • Recently Patented Inventions- December 29, 1888

    • Notes and Queries- December 29, 1888

    • Index of Inventions- December 29, 1888

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    December 29, 1888

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