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
Volume 113, Issue 18
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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