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    Features

    A New Theory of Light Sensation

    Italian Colonization in Africa

    An Extension Ladder for Sleeping Cars

    Polishing and Buffing Lathe

    An Incline Elevator and Dump

    An Improved Car Coupling

    Cigarette Paper

    The Chase-Kirchner Aerodromic Railroad

    Manufacture of Rock Candy

    A Large Punching Machine

    A Carpenter's Makeshift

    A Method of and Apparatus for Amalgamating Ores

    Novel Electric Rock Drill

    Why Flowers are Beautiful

    By The Editor of Popular Science News

    To Inventors - May 5, 1894

    Departments

    • Letters

      Correspondence - May 5, 1894

    • Recommended

      New Books and Publications - May 5, 1894

    • Departments

      Business and Personal - May 5, 1894

    • Recently Patented Inventions - May 5, 1894

    • Notes and Queries - May 5, 1894

    • Index of Inventions - May 5, 1894

    • Patents - May 5, 1894

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    May 05, 1894

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