Volume 116, Issue 22
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Features
Britain's Bid for the Control of the Air
The Airman's Duties at the Front and How He Executes Them
By Lieut. G. L. Faulkner of the British Royal Flying Corps
Strategic Moves of the War--May 23rd, 1917
By Our Military Expert
The Modern Automobile Torpedo
The Elaborate Internal Mechanism with Which It Drives and Steers Itself
The Romance of the Unsuspected
Nature's Poison-Gas Retorts
Mobilizing our Medicine
How Salt Water Climbs the Miraflores Locks
The Mechanics of Marching
A Few Points for the Weary Foot-Soldier
Submersible the Ultimate Answer to the Submarine
Some Particulars of a 5,000-Ton, 8-Knot Freighter for Transatlantic Service
How the American Artists are Helping their Navy
"In this war the American painter and illustrator is hard at work helping the Navy in making publicity for recruiting."