Features
Salvage and Testing Facilities for Submarines
Some Developments in Wireless—I
Flying-Boat Races
The Bagdad Railway
A New Factor in the Turkish-Balkan Situation
A Finder for a Three-inch Telescope
Method of Making Selenium Cells
A Home-made Portable Anemometer
An Improved Phosphoroscope
New Kind of Eyeglasses Made with Telescopic Lens
Some Remarkable Specimens of Ancient Glass
Departments
- Letters
Correspondence - November 23, 1912
- Recommended
New Books, Etc. - November 23, 1912
- Departments
Inventions New and Interesting - November 23, 1912
Recently Patented Inventions - November 23, 1912
Notes and Queries - November 23, 1912
