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Rochester and Niagara Falls Railroad

European and North American Railway

Kittle's Patent Planing Machine

The Wheeling Bridge Case

Fair of the American Institute

The Voltaic Battery

Australian Cotton

British Patent Laws

Sub-Marine Telegraph under the Atlantic

Sewell's Marine Salinometer

Another Coal Locomotive

Electro Magnetic Engine—Letter from Prof. Page

Improvement in Seraphines

Pavements in Boston

Proof of Excellence

A Cheap Paper

Heating of Railroad Cars

Hints to Inventors and Patentees

From California

Immoral Publications

The India Rubber Patent Case

The Sea Serpent

Virginia Cannel Coal

List of Patent Claims

Battin's Coal Breaker, and Bone Machinery

Bound Vol. 5, Now Ready

Important Notice to Us!

Patent Claims

To Remove Incrustations from Boilers

The Rain Gauge

Scientific Memoranda

New Prospectus

To Mechanics, Inventors, and Manufacturers

Distances across the Ocean

Cool Impudence



  • From the Editor

    To Correspondents

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October 19, 1850

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