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The Buckeye Automatic Engine

Is the Ether Matter?

The Physical Forces are Modes of Ether Pressure

The Woodbury Patent

The Cultivation of Oysters

The Commissioner of Patents on the Patent Office Tea Set

The Morgan Hospital School, Dundee, Scotland

British Naval Guns

Portable Steam Winch

Improved Horse Detacher

Shade Attachment for Plows

Improved Grubbing Machine

The Great Well at Prospect Park, Brooklyn

Sir Samuel Baker's Expedition

Ocean Telegraphy


By George B. Prescott

The Constitution of the Sun


By C. A. Young

Recent American and Foreign Patents - January 9, 1875

Communications Received - January 9, 1875

Canadian Patents - January 9, 1875


  • Letters

    Correspondence - January 9, 1875

  • Departments

    Business and Personal - January 9, 1875

  • Notes and Queries - January 9, 1875

  • Index of Inventions - January 9, 1875

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