All these doubts and difficulties in connection with the diagnosis of tuberculosis in children serve to show that in a way this question may be called a negligible one, negligible, that is to say, as a menace to public health. It is important for the individual that a diagnosis be made, in order to do intensive work in upbuilding his resistance, but he is negligible as a distributor of infection. About ten per cent. of the visiting list is made up of children. On entering a home where there are two children, one tuberculous and one not, the nurse’s efforts should be concentrated on separating the two—the emphasis being placed on the care of the one as yet uninfected. The question frequently arises, Should these tuberculous children be sent to school? Is it well for them as individuals, from the standpoint of their own health, and is it well for those who are thrown in contact with them? This decision rests solely with the physician, and can be made by him alone. As far as danger to others is concerned, it must be remembered that while a person may be tuberculous, he is not necessarily infectious, and it is upon the infectiousness of a case that the danger depends. It is difficult to care for these tuberculous children. Most nurses become deeply distressed because of this. The children are frequently undisciplined, and their parents often weak and lacking in self-control. The nurse becomes discouraged and annoyed when she sees her directions unheeded or disobeyed. But, after all, these cases constitute but a minor part of the problem, and they are not patients who do much harm. It is sad to stand by and see the individual throw away his chances, or to see them thrown away for him—but this standing by is part of the work. =Open-Air Schools.= During the past five or six years, open-air schools or classrooms have been established in several of our large cities. This is an excellent affirmative answer as to whether a tuberculous child should attend school. At these places, careful, systematic attention is given the child for several hours a day. Non-tuberculous children are also admitted—they may be called pre-tuberculous, since they are anæmic, run-down, undernourished children, who come from homes where tuberculosis exists in active form. For such cases, the open-air school does excellent preventive work, in raising the child’s resistance to a point where it can cope with the exposure at home. These open-air classes are always in charge of a physician and a nurse; their management does not come within the range of this discussion, any more than does that of the hospital or the sanatorium. The public health nurse must always take advantage of these schools, if they exist, and must see that her children are sent there. She must avail herself of every agency and of every opportunity which will improve or secure the welfare of those under her charge.