Features
The War
Directions to Army Surgeons on the Field of Battle
Quimby's Letter Box for Post Offices
Information as to the Patentable Novelty of Inventions
Steam Cultivation--Deep Plowing
Developments of Chemistry
The Oil Wells of Pennsylvania—Curious Spouting Phenomena
An Exciting Question--Boiler Explosions and their Causes
The Mechanic Arts in Central Africa
Patent Claims - August 31, 1861
Recent American Inventions
Instructions about European Patents
Departments
- Letters
Correspondence - August 31, 1861
- Departments
Notes and Queries - August 31, 1861
