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Is Battleship Subdivision a Failure?, Sources of Commercial Potash, and more

The Rythmikon--a New Aid to the Study of Musical Rhythm, Ultra-violet Rays for Water Purification in Army Service

By Harry Chapin Plummer

The Loss of the "Audacious"

Mines, Laid on the Trade Routes, Sink a British Dreadnought

Strategic Moves of the War-November 21, 1914

Letter from the Military Correspondent

The Legal Definition of a Patent, Motorcycles in the War, and more

By Thomas Ewing

The "Foot-and-Mouth Disease"

A Scourge of Cattle Which Attacks Man

By Lewis W. Fetzer

The Largest Known Dinosaur

A Huge Extinct Reptile from German East Africa, the Largest Known Quadruped

By W. D. Matthew


  • Letters

    Correspondence- November 28, 1914

  • Departments

    The Heavens in December

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