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    Rare Monkeys

    The Great Earthquake

    Horse Collar

    Steam Engine

    Spring Lock

    Locomotive Boiler Check Valve

    Insulator for Electric Wires

    Michel Eugene Chevreul

    Improved Shovel

    Stopper Fastener

    The Galatea and Mayflower

    A New Long Distance Telephone System

    The Acme Automatic Safety Engine

    An Inexpensive Air Pump

    By Geo. M. Hopkins

    Agricultural Inventions - September 18, 1886

    Miscellaneous Inventions - September 18, 1886

    Engineering Inventions - September 18, 1886

    To Inventors - September 18, 1886

    Departments

    • Letters

      Correspondence - September 18, 1886

    • Departments

      Business and Personal - September 18, 1886

    • Index of Inventions - September 18, 1886

    • Notes and Queries - September 18, 1886

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    September 18, 1886

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