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To Coat Iron with Brass, Improved Mechanical Blow-Pipe

Commander Dahlgren on Iron-Plated Ships

History of Water Gas for Light—Frauds and Patents

Recent American Inventions

Machine Electricity—Electrotyping—Telegraphing—Electric Light

Improvements for the Times—Suggestions to Inventors

Romance of the Steam Engine

Windage in Cannon

Military and Naval Inventions

Exciting Question—Working Steam Expansively

Arrival of Major Anderson and the Garrison of Fort Sumter

Cotton and War

The Polytechnic Association of the American Institute

A Strange, a Solemn, a Stirring Sight

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


  • Letters

    Correspondence - May 4, 1861

  • Departments

    Notes and Queries - May 4, 1861

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