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Improved Rotary Engine

Polytechnic Association of the American Institute

The Mining of Coal by Machinery

The Manufacture and Cutting of Flint Glass


Valuable Receipts

A Visit to Pompeii

Frictional Gearing

The Preparation of Food

The Iron-Clad Steam Battery, “Roanoke”

Progress of Modern Manufactures

A Large Screw Propeller

Sanitary Condition of New York

Lancashire--Its Population and Manufactures

Miscellaneous Summary

Valuable Work for Inventors, Patentees and Manufacturers

Discoveries and Inventions Abroad

Recent American Patents

Patent Claims


  • Departments

    Notes and Queries

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January 31, 1863

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