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Some Recent Naval Operations, The War, Industrial Research, and the American Manufacturer, and more

War Experiences of an Air Scout--I

The Diary of an American Volunteer With the Aviation Corps of the French Army

By Frederick C. Hild

Air Transparency for Infra-Red Rays

Application of These Rays to Telephotography

By G. Michaud

Strategic Moves of the War- December 19, 1914

Letter from the Military Correspondent

Righting a Twenty-Thousand-Ton Grain Elevator

A Novel Engineering Feat Performed on a Big Concrete Building

The Methods of Hindu Jugglery and Magic

The Indian Basket Trick

By Prince Sarath Ghosh

The "Ears" and Sound-Producing Mechanisms of Insects

Curious Substitutes for Vocal Organs

By Harold Bastin


  • Departments

    Inventions New and Interesting- December 26, 1914

  • Recently Patented Inventions- December 26, 1914

  • Index- December 26, 1914

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