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The Cost of Ammunition at Manila and Santiago

The Fleets of the World

Reconstruction of West Point Academy

Wireless Telegraphy and the Promoter

Report of the Prussian Commission on American Railroads

Recent Meeting of the National Academy of Sciences in Washington

By Marcus Benjamin

Science Notes

The Improvement of the Erie Canal

A Gas-Engine Friction Clutch

A Self-Starting Gasoline Motor of Novel Design

The Manufacture of Steel Rails

A Canal Excavator for Java

Breaking up 15-Inch Cast-Iron Guns

Insects in Winter

By S. Frank Aaron

An Acetylene Wireless Telephone Apparatus

Roman Forum Excavations

Business and Personal Wants


  • Departments

    Correspondence - April 26, 1902

  • Recently Patented Inventions - April 26, 1902

  • Index of Inventions - April 26, 1902

  • New Books, Etc. - April 26, 1902

  • Notes and Queries - April 26, 1902

  • Patents - April 26, 1902

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