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Improved Silk-Assorting Machine

Notes on Military and Naval Affairs

Surface Condensers for Steam Engines

The Chemistry of Coal

Chlorine as a Disinfectant

Hearing Trumpets

Historical and Scientific Facts About Petroleum

Inventive Genius at the South

The Ericsson Battery

Progress of Color-Chemistry

Death of a Distinguished Manufacturer

Iron-Clad Vessels for the Navy--What is the Best Coating for their Bottoms?--A Government Inspector's Report

Notes on Foreign Inventions and Discoveries

Recent American Inventions

Patent Claims

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February 01, 1862