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The Artifices of Modern Warfare
A submarine commander has but one means of judging the speed of the vessel to be attacked -by noting the size of the bow-wave thrown up by the intended victim. The correctness of the estimate means either a hit or a miss. The British have devised a clever method of confusing the German submarines. A huge bow-wave is painted on the sides of the ship, rendering it extremely difficult for the underwater craft to judge the speed accurately. In the insert is shown a heavy Austrian Skeda howitzer with hay to make it invisible to the Russian air-scouts
