Scientific American Magazine
Volume 101, Issue 23You are currently logged out. Please sign in to download the issue PDF.
Features
High and Cross-Country Flying Abroad
The Cherry Mine Disaster
A Decision Under the German-American Patent Treaty
Science
Electricity
Engineering
Some Photographic Diversions
Safeguarding Mines
How Does Sap Run in Pine Trees?
An Early Marine Engine
A Novel Aerial Railway
How to Observe and Record the Weather
Testing the Man-Engine
Coin-Operated Device for Registering Letters
The Ice Drag of the Wellman Expedition
An Early Type of Submarine Boat
The Great Stone Globe at Swanage
Curiosities in Science and Invention
Spray Helmet for Firemen
An Emergency Oxygen Cup for Miners
Indoor Bed Tents
Departments
Correspondence
The Heavens in December
Recently Patented Inventions
Notes and Queries
Index of Inventions
New Books, Etc.
Patents
