Volume 9, Issue 25
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Features
Southern Opinion of Mechanics
Miscellaneous Summary
Practice at Mr. Hodge's Wire Target No. 1
A New Rebel Torpedo
Report of the Chief of the Bureau of Ordnance
Armor Plates for Ships of War
Day's Kerosene Lamp
Use Patented Articles
Economy of Fuel--Smelting Iron
Self-Stopping Gear for Tools
Condensing and High-Pressure Engines
Our New Dress
Why Are the Monitors Idle?
The Machinists Strike
Lubricating Crank Pins
Water Wheels in the Kitchen
Nitrous Oxide as an Anesthetic
Lecture on the Iron-Clads
Recent American Patents
Patent Claims
Issued from the United States Patent-Office