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Features

Rolling a Fifteen-Inch Armor Plate

Improvement in Machines for Sawing Staves

On the Nature of Property in Patents

Science Familiarly Illustrated

Miner's Patent Street Lamp

Horton's Improved Founder's Mill

Adt's Rotary Riveting Machine

Manufacturing, Mining, and Railroad Items

Recent American and Foreign Patents

Editorial Summary

Extension Notice

New Publications

Answers to Correspondents

Errors in Scientific Journals

Kidder's Eureka Trap Fish Hook

Physiology of Invention

The Creative Pride of the Mechanic

Fair of the American Institute

The Combustion of Petroleum by the Retort System

Salt in the Animal System

Official Report of Patents and Claims

Pending Applications for Reissues

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Why Do Facts Fail?

Why Do Facts Fail?

Deconstructing Denial