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Features

Our Naval Forces in the Pacific

The Enemies of Structural Steel

Six Months Electric Operation of the Grand Central Station

Original Methods of Toning Developed Photographic Prints

By Milton B. Punnett

Science Notes

A Remarkable Outcrop of Silver

Simple Apparatus for Producing the Manometric Flame

By W. W. Mills

A New Automobile Race Track

Pile Foundations for Tunnel Tubes

New Railroad Construction in Canada and the Northwest

By Day Allen Willey

The Economical Surface Mining Operations of Cuba

By L. B. Ward

Santos Dumont's Combined Aeroplane and Airship

By The Paris Correspondent of the Scientific American

Water-Walking Shoes

Departments

  • Departments

    Correspondence - July 6, 1907

  • Index of Inventions - July 6, 1907

  • Recently Patented Inventions - July 6, 1907

  • Notes and Queries - July 6, 1907

  • Patents - July 6, 1907

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July 06, 1907

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