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Details of Locomotives to be Interchangeable

Debate on Patent Extensions

Self-Acting Apparatus for Steering Ships

By J. P. Joule

The Steam Boiler Assurance Company

Cultivation and Use of the Teasel

By Z. Moses

Guide Book to the Oil Regions

Miscellaneous Summary

Recent English Patents

Recent American Patents

Travel Beneficial to Workmen

Patent Law Amendment

Gas From Petroleum

Abuse of Machinery

Two Causes of the Numerous Railroad Disasters

Charges Against the Commissioner of Patents

Patent Claims

Farmers' Club

Special Notice to Inventors

Rates of Advertising

Notice to Subscribers

The Cheapest Mode of Introducing Inventions

A Valuable Work for Inventors Patentees and Manufacturers

To Inventors, Mechanics, Agriculturalists. The Annual Prospectus of The Scientific American

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March 25, 1865

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