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Features

Steam Carriages for Railways

Testing Iron for Sheathing Gunboats

The War

The American Conflict—False Accusations

The Polytechnic Association of the American Institute

Dethridge's Oval Lamp Chimney

Prof. Calvert on English Oak and Wood Used for Shipbuilding

The New Mode of Locomotion

The Russo-American Telegraph Question

The Way the Great Eastern was Saved

Fifteen Thousand Patents Secured through Our Agency

The New Iron-Clad Steamer for Our Navy

American, English and Whitworth Rifles Described and Contrasted

Conglomerate Copper—Geology

The Disaster to the Great Eastern

A Steam Car—Economical Railroading

Vexatious Delays in Issuing Patents

Military Inventions

Dangers and Safety of Coal Oil

The Metal for Iron-Clad Ships

Mexican Method of Extracting Silver from Ores

Recent American Inventions

Patent Claims - October 26, 1861

Issued from the United States Patent Office

To Our Readers

White's Governor Valve

Departments

  • Letters

    Correspondence - October 26, 1861

  • Departments

    Notes and Queries - October 26, 1861

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October 26, 1861