Features
Notes on Military and Naval Affairs
Our Special Correspondence
Ordnance in the London Exhibition
Manufacture of Large Guns
Business in General
The London Exhibition Management
The Time is Up
New Enterprise--Steam Wagon for the Western Prairies
Incrustation of Steam Boilers
Recent American Inventions - June 21, 1862
Notes on Foreign Inventions and Discoveries - June 21, 1862
Patent Claims - June 21, 1862
To Our Readers
Departments
- Letters
Correspondence - June 21, 1862
- Departments
Notes and Queries - June 21, 1862
