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Improved Paging Machine

Notes on Military and Naval Affairs

The Geological History of North America

By Stevens

Meriton's Safety Brake for Steering Gear

Novel Knife Sharpener

Chemistry of Iron

Which is the Best Washing Machine

Muntz Sheathing for Iron Ships

Coburn's Patent Sash Fastener

Our Navy and its Gallant Commodore Dupont

M'Cormick's Extension Again--Personal

Fifteen Thousand Patents Secured Through Our Agency

Building Stones and Their Preservation

Sand, Soap and Glass

Subjects for Invention

Trial Trip of the Steamer “Constitution”

To Our Editorial Brethren

Notes on Foreign Inventions

Index of War and Naval Inventions

Patent Claims

Issued from the United States Patent Office

Recent American Inventions


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  • Notes & Queries

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November 30, 1861