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A Boy's Model of a Battleship, Battleship Versus Submarine and Aeroplane, and more

By William N. Hardy

The Martinsyde Transatlantic Challenger Monoplane

An English Machine Designed to Compete for the Northcliffe Prize

By H. Bannerman-Phillips

Taking Moving Pictures at the Bottom of the Ocean

A Remarkable Photographic Feat and How It Was Accomplished

By J. E. Williamson

Two Giant Worlds, The Ninth International Congress of Applied Chemistry, and more

By Frederic Campbell

Eliminating a City's Filth and Flies

Cleveland Battles Against the House-Fly

By Jean Dawson

Signaling with Electric Light in the Daytime, Gamma Rays Produced by Means of an X-ray Tube, and more

By Our Berlin Correspondent

New Aeronautic Records, Separate Running Gears and Bodies for Railway Cars, and more


  • The Universal University

  • Letters

    Correspondence- July 11, 1914

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July 11, 1914

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