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Patent Chariot Street Car

Our Naval Efficiency

Anstie and Dupre on the Action of Alcohol

The Cultivation of Oysters

Printing the Patents

Finishing Locomotive Wheels

Hillside Mining in Colorado

Practical Mechanism


By Joshua Rose

A New Gas Carburetter

The Tompkins Upright Rotary Knitting Machine

A New Electro-Magnetic Motor

The Lighthouses of the United States

Ocean Telegraphy - January 16, 1875

By George H. Prescott

The Arithmetical Operations of Multiplication and Division

Decisions of the Courts - January 16, 1875

United States Circuit Court.--District of Massachusetts.

Recent American and Foreign Patents - January 16, 1875

Canadian Patents - January 16, 1875

Communications Received - January 16, 1875


  • Letters

    Correspondence - January 16, 1875

  • Departments

    Business and Personal - January 16, 1875

  • Notes and Queries - January 16, 1875

  • Index of Inventions - January 16, 1875

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