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Features

Improvement in Brick Making Machines, The Poison of the Cobra-Di-Capella, and more

Editorial Correspondence

The Fifteen-Inch Ball vs. the English Press

Willett's Plate Lifter

Holland's Permanent Way

Silvins & Hain's Improvement in Lamps for Lanterns

Editorial Summary

Recent American and Foreign Patents

Manufacturing, Mining, and Railroad Items

Answers to Correspondents

Neynaber's Automatic Boiler Feeder

Overell's Device for Piercing Cigars

Association of Engineers and Architects

Petroleum for Fuel--Its Economy Considered

What is Labor?

Nitro-Glycerin--Important Decision

Recent Promotions at the Patent Office

Meeting of the Academy of Sciences

Publication of Claims of Patents Sought to be Reissued

Patents and Claims

Pending Applications for Reissues

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September 07, 1867

Confronting Common Wisdom