Volume 120, Issue 5
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Features
A World in the Re-making, The Influenza Mystery Deepens and more
The British Navy on the Job
Expansion of the Fleet to Meet the Demands of the War
Battery Versus Magneto on the Airplane
A Sequel to "The True Story of the Liberty Motor"
Airship Versus Airplane
Salient Features of the Two Types of Aircraft With Regard to Their Applicability to Passenger Transport
Harnessing Boy-Power
The Story of the Boy Scouts--What They Are and What They Have Done