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New Method of Propelling Steam Vessels, Iron and Steel Railroad Tracks

The Domestic Sources of Cholera and the Means of Avoiding them

The Prussian Needle Gun

Insurance Against Steam Boiler Explosions

National Academy of Sciences

Wedging of Gases When Confined

The Markets

Agricultural Exhibitions

Question about Prior Invention

Special Notices

Dead-Stroke Power Hammer

King's Oiler

Artists and Artisans

Engines of the Steamship Rising Star

Tools for Special and for General Use

Patent Claims

Issued From the U. S. Patent Office


  • Departments


  • New Inventions

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