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Match-Making Machine

Completion of an Important Improvement

Preparing Objects of Natural History


Patent Office Fees

Manufacture of Turks Island Salt

Improved Hog Pen

Cumberland's Metal Bending Machine

Condensers of Steam Engines

Plants Under Different Conditions

London Smoke--Its Use to Purify the Air

Emery Paper

Cure for Felons

A New Silk Worm

The Alps of Europe and their Glaciers

Blind Slat Machine

Ditching Plow

On the Patentability and the Patenting of Inventions

Light and Color

Fine Writing

An Abusive Contemporary

New Type Setting Machine

List of Patent Claims

Explosion of the Steamer Timour


Inventors, and Manufactures

History of Reaping Machines--No. 12


  • From the Editor

    Ox Yoke Erratum

  • Letters

    To Correspondents - December 23, 1854

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December 23, 1854