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Features

Improved Rotary Pressure Blower

A Box Trick to Beat Hartz'

The Sovereigns of Industry

Testing the Correctness of Figures by Weight

P'i-Ryi

Amalgam Fillings for the Teeth

Scientific and Practical Information

Loss of a Large New York Mail

Improvement in Canal Navigation

The Bessemer Oscillating Saloon

Tubular Floating Docks

A New Method of Measuring Surfaces, Applied to the Circle

Blaisdell's Improved Railway Tie

Improved Potato Cutter and Planter

Broadbooks' Excelsior Pruning Shears

Combined Aquarium and Plant Case

The Physical Phenomena of Germination

The Vegetable Fibers at the Universal Exposition, Vienna

Number I

By Professor Dr. Julius Wiesner

Decisions of the Courts

United States Circuit Court.--District of Massachusetts

Recent American and Foreign Patents - January 23, 1875

Canadian Patents - January 23, 1875

Communications Received - January 23, 1875

Departments

  • Recommended

    New Books and Publications - January 23, 1875

  • Departments

    Correspondence - January 23, 1875

  • Business and Personal - January 23, 1875

  • Notes and Queries - January 23, 1875

  • Index of Inventions - January 23, 1875

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January 23, 1875

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