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Improved Musquito Canopy, the End of Breech-Loading Cannon and More

Fairbairn on Steam Boilers

The Hecker and Waterman Experiments

Special Notices

Boring Tools

Iron-Clads, Stave-Dressing Machine and More

Hybernating Fish

Some New Facts in Relation to the Sunbeam

Another Great Display of Falling Stars Expected

To Prevent Sickness in the Army

The Philosophy of Blowing Out a Candle

Factitious Diamonds

Meddling Legislation

Miscellaneous Summary

The “Kearsarge” and the “Alabama”

Recent American Patents

Patent Claims

Issued From the United States Patent-Office

Patents Granted for Seventeen Years!

To Our Readers


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  • Notes and Queries

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July 16, 1864