Some of the most interesting and valuable work done by the Committee in this war of ideas was in connection with its effort, in which it coöperated with the War Department, to inject some real knowledge of America into the enemy’s troops and into the country behind his armies. The Committee prepared most of the material for this purpose, among those engaged upon the effort to make it efficient being authors, historians, journalists, and advertising and psychological specialists, while the military forces undertook the job of distribution. Immense quantities of material, pamphlets, leaflets, short, pungent statements, speeches, facts about America’s war preparations and intentions, were dropped by the ton upon the troops of the Central Powers and behind the lines upon cities and towns and countrysides. They were carried by airplanes which spread the documents far and wide, they were thrown by rifle grenades, by rockets and by a specially developed type of gun. Balloons of various kinds rained literature upon armies and the country just behind them. Kites dropped leaflets upon the trenches. An American invention was a specialized balloon with a metal container for the literature and a control attachment governing the movements of the balloon and the distribution of the ten thousand leaflets it carried. There can be no doubt of the effectiveness of this campaign upon the minds of the enemy’s people because, in the first place, both the German and the Austro-Hungarian governments went to the most extreme lengths in the effort to combat it, making death the penalty for touching the literature. Nevertheless, the majority of the prisoners captured by the Americans had it in their pockets. In the next place, the influence of it became evident after the war closed in the temper and attitude of the enemy peoples and their determination to discard crowns and thrones and set up democratic governments. President Wilson’s speeches were found to be especially effective, each one that was sent across the lines being followed invariably by increasing ferment and dissatisfaction among the people. Into Germany, when the German censor had mutilated one of these speeches and distorted its meaning, the Committee at once sent the entire speech in German with the omitted and distorted parts properly printed in red. The result was so evident that the German government soon began to print the President’s addresses correctly and in full.