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

Some New Facts in Relation to the Sunbeam

Hybernating Fish

The Philosophy of Blowing Out a Candle

Factitious Diamonds

Meddling Legislation

To Prevent Sickness in the Army

Another Great Display of Falling Stars Expected

Recent American Patents

Miscellaneous Summary

The “Kearsarge” and the “Alabama”

Patent Claims

Issued From the United States Patent-Office

Patents Granted for Seventeen Years!

To Our Readers