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Features

Combined Writing Case and Checker Board

Improved Candle Molds

Notes on Military and Naval Affairs

Surface Condensers for Steam Engines

The Chemistry of Coal

The Plan of Creation

History of the Heliographic Art in Europe and America

By M. A. Root

Smith's Patent Nut Cracker

Agassiz as a Lecturer

What Can Be Done for Inventors--Advice Gratis and Advice for Pay

The Proposed New Iron Gunboats

Agassiz on the Existence of God

The Inventor and the National Crisis

Our Iron-Clad River Boats in Battle

Hours of Study

Cartridges--Their History

Notes on Foreign Inventions and Discoveries

Recent American Inventions

Patent Claims

Issued from the United States Patent Office

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March 01, 1862

Think Outside the Gift Box