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Improved Turbine Wheel

Notes on Military and Naval Affairs

Polytechnic Association of the American Institute

The Discoveries of 1861

Mayberry's Cartridge

Large European Guns and Powder

Testing the Strength of Electrical Currents

Photographing from Balloons in Military Reconnoissances

Philosophy of Projectiles

Manufacture of Armor Plates--Hammered and Rolled

The British Parliament on the Fight in Hampton Roads

The Rifle

Original Experiments with Superheated Steam

Recent American Inventions

Patent Claims

Issued from the United States Patent Office

To Our Readers

Bryant's Improvement in Cranks


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May 03, 1862

The Antidote to Anti-Intellectualism