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Artificial Silk

Our Fastest Battleship

Trade with Our Newly Acquired Territories

Rapid Transit by the Grace of the Politicians

Work of the Industrial Commission

The "Shamrock" and Her Chances

Automobile News

Liquid Air as an Explosive

By Frederick H. M'Gahie

Scientific Congress at Columbus

By Horack C. Hovey

Jig-File for Finishing Dies

A Large Octopus

By C. F. Holder

A Mechanically-Operated Cross-Cut Saw

Improvements in Rotary Engines

Compressed Air Traction in New York City

Fin Keel Centerboard for One-Rater

The Dewey Arch


  • Letters

    Correspondence - September 16, 1899

  • Recommended

    New Books, Etc. - September 16, 1899

  • Departments

    Recently Patented Inventions - September 16, 1899

  • Index of Inventions - September 16, 1899

  • Business and Personal - September 16, 1899

  • Notes and Queries - September 16, 1899

  • Patents - September 16, 1899

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