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Improved Saw-Mill, Philosophy of Exercise, and More

Miscellaneous Summary

A Novel Mode of Telegraphing by Solar Light

The American Watch as a Time-Keeper

Horace H. Day's India-Rubber Breech-Piece

Birney's Incendiary Shell

Practice at Target Made of Hogs-Hair

Examination of Torpedo Sent from the Navy Department

English and American Iron-Clad Ships of War

A Trap to Catch a Sunbeam

The Pitches of Screw Threads

American Guns

Coating Iron, White Copper, and Brass

Recent American Patents

Engines of the “Puritan” and “Dictator”

Patent Claims

Issued from the United States Patent Office

To Our Readers

Gates's Champion Hay Elevator


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  • Notes and Queries

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October 10, 1863

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