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Electric Street Railroads Versus Motor-Propelled Vehicles for Passenger Traffic

The Dangers and Difficulties of Tunnel Boring

The Ocean Race for the German Emperor's Cup

Turbines vs. Reciprocating Engines in Marine Service


An Antitoxin for Laziness

By Hugo Erichsen

The Largest of Bears

The Lofty Pecos Viaduct on the Southern Pacific Railway

By Day Allen Willey

The “Victorian” the First Turbine Atlantic Liner

Miniature Cameras

By Edward F. Chandler

The Double-Deck Subway System

How to Make an Electric Soldering Iron

By Arthur B. Weeks

The Entries for the German Emperor's Ocean Cup Race

The Great Premier Diamond

Some Remarkable Old Chinese Bronzes

By Walter L. Beasley

Business and Personal Wants


  • Departments

    Correspondence - April 8, 1905

  • Notes and Queries - April 8, 1905

  • Recently Patented Inventions - April 8, 1905

  • New Books, Etc. - April 8, 1905

  • Index of Inventions - April 8, 1905

  • Patents - April 8, 1905

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