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A Daring Investigation of Mont Pelee

The Commercial Prospects of Africa

Naval Bureau Chiefs and the Submarine Boat

Chemical Indexing by the Patent Office

By Marcus Benjamin

Sinking a Shaft by Freezing

Preliminary Work on the 3,000,000 Government Contract in the Philippines

By A. W. Clapp

Moving a Large Railway Bridge

The Electric Road of Berthoud-Thoune, Switzerland

The Brooks Comet of 1902

By William R. Brooks

The Modern Use of Electricity in Printing

By Frank C. Perkins


By W. Frank M'clure

Early British Double-Turreted Monitors

Railroad Freight Handling in New York City

The Baker Electric Racing Automobile

Patent Department

Utilizing the Tube Space in Bicycle Frames


Business and Personal Wants


  • Departments

    Correspondence - June 14, 1902

  • Legal Notes - June 14, 1902

  • Recently Patented Inventions - June 14, 1902

  • Index of Inventions - June 14, 1902

  • New Books - June 14, 1902

  • Notes and Queries - June 14, 1902

  • Patents - June 14, 1902

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June 14, 1902

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