Scientific American Magazine
Volume 31, Issue 20You are currently logged out. Please sign in to download the issue PDF.
Features
The Myers Rotary Engine
Rapid Transit in the City of New York
Hints to Inventors and Capitalists
Chloroform Dangers
Masters and Men
The Development of Subterranean Heat
Novelplan for Building Submarine Structures
Carrier Pigeons
The Underground Railway, New York City
Crucibles
Improved Sash Boring and Grooving Machine
Improved Surface Blow-Off
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
Correspondence - November 14, 1874
Business and Personal - November 14, 1874
Index of Inventions - November 14, 1874
