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    Features

    Relation of Rainfall to Boiler Scale

    Opening of the New St. Lawrence Canal Locks

    "The Wish Is Father to the Thought"

    Tunnels Versus Bridges for Rapid Transit

    Our Exports of Iron and Steel

    New York's Trade in Wild Animals

    Ancient Egyptian Porcelain

    Tropical Products of Our New Possessions

    "Advance Sheets" of the German Consular Reports

    The Automobile Cup

    Railway Safety Appliances - December 16, 1899

    The Naval Guns at Ladysmith

    Hauling Logs by Motor Trucks

    A Tool for Reloading Empty Cartridge Shells

    The Engines of the First-Class Battleship "Wisconsin"

    The Trojan Horse at the Paris Opera House

    A California Verde Antique Quarry

    By Charles F. Holder

    A New Safety Valve

    A New form of Fire-Escape and Lowering Apparatus

    A Novelty in Railroad Collisions

    A Switch-Throwing Device for Cars

    How Sculptors Change the Scale of Their Statues

    Departments

    • Letters

      Correspondence - December 16,1899

    • Recommended

      New Books, Etc - December 16,1899

    • Departments

      Recently Patented Inventions - December 16, 1899

    • Notes and Queries - December 16, 1899

    • Business and Personal - December 16, 1899

    • Index of Inventions - December 16,1899

    • Patents - December 16, 1899

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    December 16, 1899

    See the World from a Different Perspective

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