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Features

To Coat Iron with Brass, Improved Mechanical Blow-Pipe

Commander Dahlgren on Iron-Plated Ships

History of Water Gas for Light—Frauds and Patents

Machine Electricity—Electrotyping—Telegraphing—Electric Light

Recent American Inventions

Improvements for the Times—Suggestions to Inventors

Romance of the Steam Engine

Arrival of Major Anderson and the Garrison of Fort Sumter

Windage in Cannon

Military and Naval Inventions

Exciting Question—Working Steam Expansively

A Strange, a Solemn, a Stirring Sight

The Polytechnic Association of the American Institute

Cotton and War

The Events of the War

Patent Claims - May 4, 1861,

Issued from the United States Patent Office

To Our Readers

Clark's Expansive Bit

Lyons' Improved Lock Seal

Departments

  • Letters

    Correspondence - May 4, 1861

  • Departments

    Notes and Queries - May 4, 1861

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