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Features

Improved Projectiles, Maxims on Onion Culture, and More

Ancient and Modern Weapons of War

Morrell's Patent Pump

Valuable Receipts

Archer's Patent Hinge

Nut Lathes

Useful Information About Boilers

The Necessity for Bodily Exercise

Present Condition of the Roanoke

California Gold

Miscellaneous Summary

Heat of the Earth's Interior Volcanoes

Grind the Tools

Applications for the Extension of Patents

Recent American Patents

Discoveries and Inventions Abroad

Patent Claims

To Our Readers

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    Correspondence

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April 04, 1863

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