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Bentley's Hay-Loading Machine

The Most Important American Discoveries and Inventions

Miscellaneous Summary

New Experiments in Working Steam Expansively

Polytechnic Association of the American Institute

Special Notice

The Drill and its Office

Patent Extension Schemes

Coppering Iron Ships

Water as Fuel

The Dictator.

Spare the Centers


New Books and Publications

Recent American Patents

Patent Claims

Patents Granted for Seventeen Years!

To Our Readers

Rates of Advertising

The Cheapest Mode of Introducing Inventions

Chesney's Sorghum Evaporator


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  • Notes and Queries

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April 02, 1864