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Improved Floodway for Warehouses

Insect-Eating Plants

Drugging Horses

Completion of the Hell Gate Excavations

Steam Boiler Phenomena


"Stray Idees"

The New Commissioner of Patents

Life-Saving Apparatus

Water Pressure Engine

An Experimental Aurora

Scientific and Practical Information - September 25, 1875

Roberts' Combined Lamp and Oil Can

Fox's Reversible Cap

A Mercurial Safety Valve

Improved Vise

The Centennial Buildings

Decisions of the Courts - September 25, 1875

Recent American and Foreign Patents - September 25, 1875

Canadian Patents - September 25, 1875

Communications Received - September 25, 1875


  • Correspondence - September 25, 1875

  • Recommended

    New Books and Publications - September 25, 1875

  • Departments

    Business and Personal - September 25, 1875

  • Notes and Queries - September 25, 1875

  • Index of Inventions - September 25, 1875

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis