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Loss of the Campbell Air Ship

Frederick J. Seymour

A Fast American Steam Line to Europe

Position of the Planets in August

An Improved Valve for Steam Engines

Hints on Glass Blowing

An Improved Necktie

Electric Lamp Hanger

An Improved Harness

Electric Propulsion for Common Roads

Recent Discoveries in the Nebul by Means of Photography

By Edward S. Holden

The Paris Exhibition

To Inventors- July 27, 1889

Departments

  • Letters

    Correspondence- July 27, 1889

  • Recommended

    New Books and Publications- July 27, 1889

  • Departments

    Business and Personal- July 27, 1889

  • Recently Patented Inventions- July 27, 1889

  • Notes and Queries- July 27, 1889

  • Index of Inventions- July 27, 1889

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July 27, 1889

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