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Features

Improved Automatic Cut-Off and Governor Valve, A New Flying Machine

Impertinence of the Ordnance Department Toward Inventors

Miscellaneous Summary

Manganese

Taylor's Automatic Churn Power

The Fair of the American Institute

Improvement in Vessels of War

The Hammer Mightier Than the Pen

Piece Work

Hands Versus Wheels

Zinced Iron for Ship's Plates

Penetrating Power of Projectiles

Woody Fiber--Vegetable Parchment

Molecular Mobility of Gases

400 Unfortunates

Recent American Patents

Patent Claims

Issued From the United States Patent-Office

Wing's Patent Leather-Splitting Machine

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September 19, 1863

Complex Causes. Alternative Solutions.