=Beginning the Work.= Let us suppose that a certain community, town or country, suddenly becomes aware of tuberculosis in its midst, and in consequence wishes to get rid of it. It is but a fraction of the community which is enlightened enough for this, but from this nucleus must come all that awakening of public sentiment needed to facilitate the campaign. To estimate the number of tuberculous persons in any locality, multiply the yearly tuberculosis death-rate by five or ten—authorities differ as to the exact figures. The result will be the approximate number of those afflicted. The public press will help in disseminating this information, which is the basis from which we must work. Since the beginning of the campaign, newspapers have been wonderfully helpful allies in giving wide publicity to facts concerning tuberculosis. As a result of this newly aroused interest, an Anti-Tuberculosis Society may be created, and into its fold are gathered all those willing to help in the work, each with his dollar. Lectures, exhibits, open-air speaking, lantern-slide exhibitions, meetings in churches and others held before various societies are given in various parts of the town, and in this way information about tuberculosis is spread far and wide. There are two classes of the community, however, that must be reached—those who have tuberculosis and those who have not. The people who go to lectures and exhibits belong chiefly to the latter class. Frequently, of course, the sick ones find their way in, in an endeavour to learn something which may be helpful to them; unfortunately, they are able to take away but little, and the little they do get they often misapply. We recall the case of a man who went to a tuberculosis exhibit, and learned that fresh air was good. As a result, he walked several miles a day in order to get it, and nearly killed himself. He had succeeded in learning one important fact—that fresh air was valuable—but another, of equal importance, that exercise was harmful, had escaped him. To make the undertaking succeed, it is necessary to reach both the sick and the well, since that strong, intelligent public opinion, which is the motive force behind all new movements, must be aroused among the sick as well as among the healthy. But as we have seen, the former are not those who go largely to lectures, so they must be reached through some other means. The most effective way of reaching them is through the employment of a special nurse, who shall give eight hours a day, week in and week out, to visiting in the homes where tuberculosis exists, and giving instruction adapted to each individual case. By this means the people most in need of assistance are reached without loss of time and effort, and case after case is uncovered. This is shooting straight for the bull’s-eye—namely, the infected home from which tuberculosis is spread.