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English Engine Drivers

The Celestials in China

The Pulley Engine

Aurora Branch Railroad

Eight Wheel Cars for Railroads

American Association for the Advancement of Science


A Female Aeronaut

A Machine for Praying

About Explosions—Practical Exprience

Black Lead Mines of New Brunswick

Wine Making

Noiseless Carriage Wheels and Horse Shoes


The Voltaic Battery

Improved Axle Box

Knapp's Patent Cow Milker

A New Watch

Centrifugal Castings

Improved Mitre Box

Improved Carpet Loom

Letter and Newspaper Clasps


Singular Process

Our New Volume

Our List of Patent Claims

The Late State Fair

The Power of Lightning, Steam, and the Press

Jenny Lind, the Queen of Song

Aspect of Death in Childhood

Dodd's Anti-Friction Shaft and Axle Roller Cylinder

Fair of the American Institute

Maryland Mechanics Institute

List of Patent Claims

The Submarine Telegraph between France and England

Important Notice to Us!

Durability of Iron Ships

Coal Ashes as a Manure

Butternut Sugar

American Mesmerizer in Britain

To Extract the Essential Oil from any Flower

To Harden Steel without Springing

Ocean Navigation—Marine Steam Engine

New Prospectus

To Mechanics, Inventors, and Manufacturers


  • From the Editor

    To Correspondents

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September 21, 1850

20% Sitewide for President's Day