Features
The Secrets of Our Success in the Steel Trade
Airship or Aeroplane--Which
Wireless Telegraphy Tests in Switzerland
The Danger from the Importation of Animals
End of the Creusot Strike
Importance of Patents and Trade Marks in Germany
The Automobile in Buenos Ayres
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
- Recommended
New Books, Etc. - December 9, 1899
- Departments
Recently Patented Inventions - December 9, 1899
Business and Personal - December 9, 1899
Notes and Queries - December 9, 1899
Index of Inventions - December 9, 1899
Patents - December 9, 1899
