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Features

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 American Patents

Recent English Patents

Two Causes of the Numerous Railroad Disasters

Abuse of Machinery

Gas From Petroleum

Patent Law Amendment

Travel Beneficial to Workmen

Farmers' Club

Patent Claims

Charges Against the Commissioner of Patents

Notice to Subscribers

Special Notice to Inventors

Rates of Advertising

A Valuable Work for Inventors Patentees and Manufacturers

The Cheapest Mode of Introducing Inventions

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

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March 25, 1865