Engine with Walbridge's Cut-Off

Notes on Military and Naval Affairs

Fulminating Substances

Submarine Torpedoes--Infernal Machines

History of Turbine Water Wheels

The Chemistry of Coal

Colored Candles for Illuminating Purposes

What Can Be Done for Inventors--Advice Gratis and Advice for Pay

War and Taxation

The Great London Exhibition

India-Rubber Rollers for Wringing Machines

American Steamer for China--Her Steam Engine

Kjoekkenmoedding

Recent American Inventions

The New Guns for the Navy

Steam Engines on Common Roads in South America

Patent Claims

Issued from the United States Patent Office

To Our Readers

Plimpton's Skate Fastener

Prospectus