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Building American Locomotives in British Shops

Naval War-Game Between the United States and Germany

The New Railroad and Trolley Tunnels Entering New York

To Our Subscribers

The Army Signal Corps

European Sale of Pupin's Telephone Patents

A German Ambulance Train

Machine for Removing and Disposing of Snow

Electro-Magnetic Rotations

By Howard B. Dailey

Thomas Alva Edison

Spectral Photography

By George M. Hopkins

The New Armored Cruisers "Tennessee" and "Washington"

Leading Types of 1902 French Light-Weight Automobiles

Business and Personal Wants


  • Departments

    Science Notes - December 27, 1902

  • Correspondence - December 27, 1902

  • Recently Patented Inventions - December 27, 1902

  • Index of Inventions - December 27, 1902

  • Notes and Queries - December 27, 1902

  • Index - December 27, 1902

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December 27, 1902

Science for the Modern World