Page:Collier's New Encyclopedia v. 01.djvu/79

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AERONAUTICS
53
AERONAUTICS

and other cities. In a three months' period, 249 raids were made and 247 tons of bombs dropped. So heavy was the damage inflicted that the German Government on Nov. 4 appealed to the American Government, and proposed the abandonment by both sides of attacks on cities outside of the fighting zone. What it had itself originated was proving its undoing.

Not only bombs were dropped from airplanes. Propaganda was also scattered over the enemy's lines. Millions of pamphlets and leaflets fluttered down into enemy trenches, and told to the soldiers there the views of the other side and the course that operations were taking. This was done by both sides, and in the later days of the war proved especially useful to the Allies, as was proved by the bitterness of Hindenburg's complaint of the demoralization