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A Result of Improved Rapid Transit

The New American Lighthouse System

By George Ethelbert Walsh

The Lesson of the East River Bridge Fire

Pipe Galleries for the Broadway Tunnel

The Physiology of Certain Colors

By James Weir Jr.

Two New Warships for Chile

A New Soot-Proof Spark Plug for Gasoline Motors

Revolving Chimney Cap

Horseshoer's Box

An Automobile Ambulance

Popp-Branly Aerial Telegraphy Systems

By the Paris Correspondent of the Scientific American

The New East River Bridge Fire

The Raising of Peas and Asparagus in the West

The Submarine Boat "Protector"

By Waldon Fawcett

Head-On Collision of Trains in Los Angeles, Cal

Business and Personal Wants

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    Correspondence - November 22, 1902

  • Index of Inventions - November 22, 1902

  • Notes and Queries - November 22, 1902

  • Recently Patented Inventions - November 22, 1902

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November 22, 1902

See the World from a Different Perspective

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