How the Slides Develop at Panama, Shall we Take a Cold Bath to Cool Off After Exercising and more
Includes and editorial by a German on the permanent fortifications in Belgium
Features
The Wrecking of the Cruiser Emden by Shell Fire
Aerial Range-Finding with Electrical "Ears"
A Microphone System of Detecting Invisible Airships and Determining Ranges
Strategic Moves of the War, October 21st, 1915
The Great Gas Tunnel Under the East River
A Battle with Floods Two Hundred Feet Below Sea Level
Tennis as Compared to Golf
Apparatus for Determining Quality and Intensity of Violin Tones
Departments
- Letters
Correspondence - October 30, 1915
- Recommended
New Books, Etc. - October 30, 1915
- Departments
The Heavens in November, 1915
Inventions New and Interesting - October 30, 1915
Recently Patented Inventions - October 30, 1915
