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Features

Improvement in Machines for Sawing Staves

Rolling a Fifteen-Inch Armor Plate

On the Nature of Property in Patents

Science Familiarly Illustrated

Horton's Improved Founder's Mill

Miner's Patent Street Lamp

Adt's Rotary Riveting Machine

Editorial Summary

Recent American and Foreign Patents

Manufacturing, Mining, and Railroad Items

Answers to Correspondents

New Publications

Extension Notice

Errors in Scientific Journals

Kidder's Eureka Trap Fish Hook

Fair of the American Institute

The Creative Pride of the Mechanic

The Combustion of Petroleum by the Retort System

Physiology of Invention

Salt in the Animal System

Official Report of Patents and Claims

Pending Applications for Reissues

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October 12, 1867

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