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Features

Root's Novel Reciprocating Steam Engine

The Invention of the Card-Making Machine, Miscellaneous Summary

Recent Southern Intelligence

To Machinists and Others

Farmers' Club

Polytechnic Association of the American Institute

Crosby's Pocket Calendar

Impregnable Armor

Trivial Things

Explosions of Steam Boilers

A Remonstrance Against the Extension of the Goodyear Patent

The New Call, and Breech-Loaders

The Monitor Turrets

Recent American Patents

The Centigrade Thermometer

Special Notices

Patent Claims

To Our Readers

Patents Granted for Seventeen Years!

Rates of Advertising

The Cheapest Mode of Introducing Inventions

A Valuable Work for Inventors Patentees and Manufacturers

Improved Lightning-Rod, Diseases of Over-Worked Men

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March 26, 1864

Think Outside the Gift Box