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Features

Combination Ice and Freezing House

Gain from the Application of Condensers to Steam Engines

Railroad Employees and their Pay

Impracticable Inventors

Improvised Apparatus for Steam Boiler Trials

Scientific and Practical Information - October 24, 1874

Improvement in Cable Telegraphy

New Portable Engine

New Instrument for Estimating Urea

The Hydraulic Ram

The Pacific Ocean Telegraph

Practical Mechanism - October 24, 1874

Number XI

By Joshua Rose

A New Boiler Covering

Improved Air Spring Forge Hammer

Dough Kneader and Cutter

Long Moss

The Cultivation of the Victoria Regia

Recent American and Foreign Patents - October 24, 1874

The Early History of Wheeled Vehicles and Railways

Answers to Correspondents - October 24, 1874

Communications Received - October 24, 1874

Canadian Patents - October 24, 1874

Departments

  • Letters

    Correspondence - October 24, 1874

  • Departments

    Business and Personal - October 24, 1874

  • Index of Inventions - October 24, 1874

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October 24, 1874

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