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Pneumatic Dispatch

The War

The Polytechnic Association of the American Institute

New Method of Transmitting Simultaneously Two Dispatches on One Wire

Danchell's Tests for Water

Information as to the Patentable Novelty of Inventions

Sir William Armstrong—Is a Patent a Monopoly?

Gold Coming and Going

Trap Quarries—Street Pavements

A New Mode of Locomotion

Our Workshops and the War

Philadelphia Manufactures

English Shipbuilders Still Following Stevens's Floating Battery

New York Markets

Patent Claims - October 5, 1861


  • Departments

    Notes and Queries - October 5, 1861

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