Features
Hints to Inventors and Capitalists
Rapid Transit in the City of New York
Chloroform Dangers
The Development of Subterranean Heat
Masters and Men
Novelplan for Building Submarine Structures
Carrier Pigeons
The Underground Railway, New York City
Crucibles
Improved Surface Blow-Off
Improved Sash Boring and Grooving Machine
Barrow-in-Furness (England) and Its Founder
The Franklin Institute Exhibition
Recent American and Foreign Patents - November 14, 1874
Answers to Correspondents - November 14, 1874
Communications Received - November 14, 1874
Canadian Patents - November 14, 1874
Departments
- Letters
Correspondence - November 14, 1874
- Departments
Business and Personal - November 14, 1874
Index of Inventions - November 14, 1874
