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    Signaling Apparatus used by Airships, Thermometry of Low Temperatures and more

    Signaling Apparatus used by Airships
    Thermometry of Low Temperatures
    The Navy Our First Line of Defense
     

    Curbing the Sea at Galveston

    How the Seawall Stood up before the Recent Hurricane

    By Henry M. Robert

    Remarkable Collision between an Oil Car and a Steam Locomotive

    By Charles Alma Byers

    Strategic Moves of the War-September 15th, 1915

    By Matthew E. Hanna

    The Largest Hydraulic Motor

    Departments

    • Submarine for Hydrographic Work

    • Recommended

      Correspondence - September 25, 1915

    • New Books, Etc. - September 25, 1915

    • Departments

      Inventions New and Interesting - September 25, 1915

    • Recently Patented Inventions - September 25, 1915

    • Notes and Queries - September 25, 1915

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    September 25, 1915

    See the World from a Different Perspective

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