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Improved Projectiles, Maxims on Onion Culture, and More

Ancient and Modern Weapons of War

Valuable Receipts

Morrell's Patent Pump

Archer's Patent Hinge

Nut Lathes

Useful Information About Boilers

Present Condition of the Roanoke

The Necessity for Bodily Exercise

Grind the Tools

Heat of the Earth's Interior Volcanoes

California Gold

Miscellaneous Summary

Discoveries and Inventions Abroad

Applications for the Extension of Patents

Recent American Patents

Patent Claims

To Our Readers


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  • Notes and Queries

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