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Gun-Cotton for Cannon

Improved Marine Clock and Register

Production and Consumption of Coffee

New Books and Publications

Foreign Scientific Miscellany

The United States Mint and Coinage

Boiling Food for Hogs

Composition of Atmosphere--Valley of Death

Food for Cattle

American Cast-Iron Ordnance

Defects of the British Iron-Clads

Special Notices

Power From Belting

American Steel and Machine-Cut Files

“Macfie” on Patents

Tungsten and its Alloys

Invention, the Ally of Civilization

American Flax-Cotton and Machinery

Our Subscribers

Recent American Patents

Present Strength of the British Navy

The Pressure Produced by Gunpowder

Patent Claims

Patents Granted for Seventeen Years!

Rates of Advertising

To Our Readers

A Valuable Work for Inventors Patentees and Manufacturers

The Cheapest Mode of Introducing Inventions

Improved Friction Pulley, The Government Laboratory


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