Volume 5, Issue 17
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Features
Testing Iron for Sheathing Gunboats
The War
The American Conflict—False Accusations
Dethridge's Oval Lamp Chimney
Prof. Calvert on English Oak and Wood Used for Shipbuilding
The Polytechnic Association of the American Institute
The New Mode of Locomotion
The Russo-American Telegraph Question
The Way the Great Eastern was Saved
Fifteen Thousand Patents Secured through Our Agency
The Disaster to the Great Eastern
Conglomerate Copper—Geology
The New Iron-Clad Steamer for Our Navy
American, English and Whitworth Rifles Described and Contrasted
A Steam Car—Economical Railroading
Dangers and Safety of Coal Oil
Military Inventions
Vexatious Delays in Issuing Patents
The Metal for Iron-Clad Ships
Mexican Method of Extracting Silver from Ores
Recent American Inventions
Patent Claims - October 26, 1861
Issued from the United States Patent Office