Scientific American Magazine
Volume 81, Issue 24You are currently logged out. Please sign in to download the issue PDF.
Features
The Secrets of Our Success in the Steel Trade
Airship or Aeroplane--Which
The Dalmeny Experiments
The Danger from the Importation of Animals
The Automobile in Buenos Ayres
Importance of Patents and Trade Marks in Germany
Wireless Telegraphy Tests in Switzerland
End of the Creusot Strike
An X-Ray Delusion
A Safety Switch-Locking Mechanism for Railways
Railway Signals
Education by Correspondence
The Submarine Boat and Its Future
The New French Armor-Clad "Henri Quatre"
The Crime of a Century - December 9, 1899
Departments
Recently Patented Inventions - December 9, 1899
Index of Inventions - December 9, 1899
Notes and Queries - December 9, 1899
Business and Personal - December 9, 1899
New Books, Etc. - December 9, 1899
Patents - December 9, 1899
