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Appreciation of the Naval Number

Bridges Versus Tunnels

Transoceanic Wireless Telegraphy

Annual Report of the Work of the Observatory of Paris for 1900

By M. Loewy

A Pendulum Propeller

The Slaby-Arco Portable Field Equipment for Wireless Telegraphy

By A. Frederick Collins

The Pennsylvania-Long Island Connecting Railroad Tunnels

New Submarines for the United States Navy

The Combined Third and Traction Rail System of Haulage

Alcohol Automobiles at the Paris Alcohol Exhibition

The Gobron-Brilli By Our Paris Correspondent

Method of Lighting the Great Water Tank at the Nouveau Cirque, Paris

Patent Department

Simple Interesting Inventions

Business and Personal Wants


  • Departments

    The Heavens in January, 1902

  • Recently Patented Inventions - December 28, 1901

  • Index of Inventions - December 28, 1901

  • Index - December 28, 1901

  • New Books - December 28, 1901

  • Notes and Queries - December 28, 1901

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