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Match-Making Machine

Completion of an Important Improvement


Preparing Objects of Natural History

Manufacture of Turks Island Salt

Patent Office Fees

Cumberland's Metal Bending Machine

Improved Hog Pen

Condensers of Steam Engines

Plants Under Different Conditions

Cure for Felons

Emery Paper

The Alps of Europe and their Glaciers

A New Silk Worm

London Smoke--Its Use to Purify the Air

Blind Slat Machine

Ditching Plow

Fine Writing

Light and Color

On the Patentability and the Patenting of Inventions

An Abusive Contemporary

New Type Setting Machine

List of Patent Claims

Explosion of the Steamer Timour

History of Reaping Machines--No. 12


Inventors, and Manufactures


  • From the Editor

    Ox Yoke Erratum

  • Letters

    To Correspondents - December 23, 1854

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