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Features

The Excelsior Universal Wood Worker

Patent Law Amendments

An Ancient Metric System

The Sewing Machine

Science Record for 1875

Prospects for 1875

Can Ants Talk?

The Underground Railway, New York City

Baker's Improved Bootjack

The Belgian Mode of Lowering Miners in Shafts

Combined Wrench and Bolt Cutter

Practical Mechanism

By Joshua Rose

Improved Camp Lounge

Remarkable Birds

Decisions of the Courts

Recent American and Foreign Patents - February 13, 1875

Communications Received - February 13, 1875

Canadian Patents - February 13, 1875

Departments

  • Improved Grate Bar

  • Letters

    Correspondence - February 13, 1875

  • Departments

    Business and Personal - February 13, 1875

  • Notes and Queries - February 13, 1875

  • Index of Inventions - February 13, 1875

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February 13, 1875

See the World from a Different Perspective

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