Industrial teaching and vocational guidance through the public schools should do much to bring about this training toward constructive citizenship. But for the equally important task of prevention some preliminary work must be done. Obstacles must be removed. Those who can profit by such training must be sifted out from those who cannot, and through the schools we must fit by some preliminary process, those who at first sight seem unfit. For in the schools are often found the beginning of all the bitter problems with which our strongest philanthropic organizations are struggling so manfully. “Millions for cure, nothing for prevention” sometimes seems to express pretty clearly where the emphasis has been placed in the past. The schools can help greatly if they would get back behind the present situation, and discuss, point out, and if necessary, perform these acts of prevention. What does all this mean? It means that social service must come to be regarded as a justifiable function of the schools, as justifiable as it has already become in the case of at least two other institutions. Upwards of twenty years ago a militant clergyman in New York is quoted as having said: “It is all very well to talk of saving souls, but I never yet have seen a soul that was not connected with a body.” At that time religious work was confined much more closely than it now is within certain traditional limits, and these ringing words did much to turn the attention of the churches toward their old ideal of social service. A later grafting of the spirit of social service on long established practices is shown in the progress of hospital social service. What first opened the eyes of the medical profession is not recorded, but it was soon proven that the assurance given to a woman at the hospital that her children were being well cared for in her absence hastened her recovery, and that the visits of a wise and sympathetic nurse or trained social worker to the home of a discharged patient almost always succeeded in preventing that patient’s return because of a relapse due to carelessness or ignorance. A physician in a large Boston hospital where the social service is famous for its completeness and efficiency has said that a good social service nurse saves her salary twice over by the cures she hastens and the returns she prevents.