Features
Notes on Military and Naval Affairs
The Handsomest Fire Engine Ever Built
Petroleum -- Experiment to Determine its Comparative Illuminating Power with Gas and Candles
Polytechnic Association of the American Institute
Valuable Receipts
Recent Foreign Inventions - July 26, 1862
Coating the Hulls of Iron Ships
The True Remedy for the Scarcity of Change
Iron-Clad Frigates--Bending Their Armor Plates
Experiments with Working Steam Expansively and with Condensers
The London Exhibition
Interesting Reminiscences
Patent Claims - July 26, 1862
Issued,From The United States Patent Office
Recent American Inventions - July 26, 1862
To Our Readers - July 26, 1862
Departments
- Letters
Correspondence - July 26, 1862
- Departments
Notes and Queries - July 26, 1862