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Ocean-going Log Rafts, On the Mat, and more

Including an Editorial on the Successes of Aerial Reconnaissance

By J. F. Springer

Forest Fire Fighting

Construction of a 115-Foot Watch-Tower With Limited Equipment

Hearing Print

The Electrical Measurement of Star Light

How Modern Technical Advances are Utilized in Astronomy

By Joel Stebbins

Strategic Moves of the War- November 7th, 1914

Letter from the Military Correspondent

Random Reflections

By "Irresponsible"

A Museum of Devices for the Elimination of Unnecessary Fatigue in the Industries, A Flood-proof Road, and more

By Frank B. Gilbreth


  • Letters

    Correspondence- November 14, 1914

  • Recommended

    New Books, Etc.- November 14, 1914

  • Departments

    Recently Patented Inventions- November 14, 1914

  • Notes and Queries- November 14, 1914

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