It is a significant fact, however, for those of us who are interested in the welfare of college boys and girls, that the United States government deliberately built up what was to all intents and purposes an undergraduate college life for the young men of the army, with athletics, dances, dramatics, singing, and all the rest, even including opportunities for reading and study. Even the most hardened of regular officers, who at the first, I fear, regarded this as some of the civilian foolishness with which all soldiers have to contend, came to see that the program was a vital factor in building up such a body of fighting men as they had never seen. And this is only another way of saying that if you want to use the human machine for any purpose, you must concern yourself with the whole of it. Human nature does not come in air-tight compartments. President Wilson coined a phrase which has thoroughly gone the rounds when he said that the side-shows of college life should not overshadow nor distract from the entertainment in the main tent. We all agree to this. But I think we are more inclined than when the words were spoken to urge that the side-shows, properly and intelligently subordinated, should be under the same management as the main tent. The army has tried the experiment on a large scale and it has worked well. In February last there were in France and on the Rhine six million and a half individual participants in athletic games, ten million attendants on entertainments, nearly a quarter of a million students. * * * * * None of the lessons which the Army has learned are more significant than those which have to do with mobilization and classification. The activities of the Provost Marshal General, of the Committee on Classification and Personnel, in coöperation with the Committee on Education, furnish the best record of large scale human engineering in the new science of personnel of which we have any record, either in this country or, I think, elsewhere. A university like this one is an army, and not such a small army either, judging by peacetime standards. The United States found that it was worth while, indeed that it was absolutely necessary in organizing its forces, to find out everything it could about every man in the army, what he needed physically to increase his efficiency; what he needed to keep him interested and out of mischief; what he should have in the way of training--based on what he knew already and based on careful mental tests--to make him of the greatest usefulness; whether he had the will to win, and if not, whether anything could be done to get it into him. In a word, the United States wanted to know just what each man's possibilities were. Was he officer material or non-com material? Should he go into the line or one of the special corps--or to the labor battalion? As a result of this program, the Army succeeded in finding a place that counted for 98 per cent of the drafted men.