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    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

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    • 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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