Features
Notes on Military and Naval Affairs
Fulminating Substances
Submarine Torpedoes--Infernal Machines
The Chemistry of Coal
History of Turbine Water Wheels
What Can Be Done for Inventors--Advice Gratis and Advice for Pay
The Great London Exhibition
India-Rubber Rollers for Wringing Machines
Colored Candles for Illuminating Purposes
War and Taxation
American Steamer for China--Her Steam Engine
Bartlett's New Hot-Air Furnace
Kjoekkenmoedding
The New Guns for the Navy
Recent American Inventions
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
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Correspondence
Notes and Queries