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Features

A 70,000 Horse Power Plant

Cost of Wireless Telegraphy

The Fastest Long Distance Train in the World

How Various Countries Subsidize their Mercantile Marine

Earth Telephone Experiments of M. Ducretet

Science Notes - March 8, 1902

A New Type of Motor Car

A Pneumatic Fire Escape and Tower

By William S. Crandall

The Guarini Repeating Wireless Telegraph System

By A. Frederick Collins

Test of the New Floating Drydock at Algiers, La

By Frederick Moore

Ore Handling at Furnaces

By Waldon Fawcett

The Villard Flying Machine

BY OUR PARIS CORRESPONDENT.

A New Level and Plumb

Electrical Hot-Water Heating System

Simple and Interesting Inventions

Departments

  • Departments

    The Heavens in March 8, 1902

  • Correspondence - March 8, 1902

  • Legal Notes - March 8, 1902

  • Recently Patented Inventions - March 8, 1902

  • Business and Personal wants - March 8, 1902

  • Index of Inventions - March 8, 1902

  • Notes and Queries - March 8, 1902

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March 08, 1902

Beyond XX and XY

Biology. Identity. Equality.