One further point with regard to the general ward. I have spoken of it as the backbone of the clinic because it represents general practice, which is the backbone of the medical profession. It is proper, therefore, that it should be the meeting place of those who devote themselves to different fields of medicine; and here the active full-time practitioner should come in contact with the man who is devoting most of his time to research and teaching. In clinical teaching the active practitioner of internal medicine plays a very important rôle, and he should receive positions and titles corresponding in dignity to the contribution he makes. These conventional details must not be neglected, for they help to make clear to the staff that the work of the practitioner is going to be completely recognized by the school. In my own mind there is no question but that the man whose practice is largely outside the hospital can bring something to students and staff that is difficult for the man whose practice is largely inside the hospital to bring, and several years of experience have confirmed this view. On the other hand, the practitioner should also get a stimulus from contact with the research which the hospital group is carrying on. In the Boston City Hospital Clinic, representatives of the two types of men alternate in making ward rounds during the school term and, as far as possible, the same plan is continued by the younger men in the summer. Curiously enough, it has seemed to me more difficult to find enthusiastic and competent clinical teachers among the practitioners than in the hospital group.