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Improved Steam Riveting Machine

Notes on Military and Naval Affairs

The Geological History of North America

By Stevens

Improvement in Casting Rollers for Rolling Mills

Chemistry of Iron

Lead Mines--Process of Smelting

Gladstone on Nature and Art

Fifteen Thousand Patents Secured Through Our Agency

Changes in Our Manufactures

The Great Industrial Exhibition--Important to Inventors

Progress of the Electric Telegraph

Deposition of King Cotton

Transferring Steel Engravings on Bank Notes

A Northeast Storm Moves Against the Wind

The Successors of the Urets

The Ericsson Battery

Recent American Inventions

Notes on Foreign Inventions

Notice--List of Patent Claims

Patent Claims

Issued from the United States Patent Office

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