Features
The War
The New Spanish Rifled Artillery
Information as to the Patentable Novelty of Inventions
Revival of Business
Great Trial of Steam Plows
Telegraphing by Occultation of Lights—Several Claimants for the Discovery
Aluminum Bronze—Brass
Bessemer's Process of Making Steel
The New Spanish Rifled Cannon
Coating the Bottoms of Iron Ships
Information about Hydrophobia
Cocoa Leaves—Their Peculiar Properties
Oxygen Decomposed
Taking of the Popular Loan
Patent Claims - September 14, 1861
Recent American Inventions
Honorable Joseph Holt in New York
Instructions about European Patents
Departments
- Letters
Correspondence - September 14, 1861
- Departments
Notes and Queries - September 14, 1861
