Probably the most serious source of infection which one is liable to encounter in the usual ways of life is the occupancy at hotels of bed-rooms vacated by consumptives without subsequent efficient cleansing, and travel in sleeping cars. I need not enter here into the harrowing details of desperate uncleanness which the ordinary railway travel brings to light. It is to be hoped that popular demand for reform in the routine of hotel-keepers and railroad managers in the matter of ordinary sweeping and dusting, and in the precautions against the spread of tuberculosis, may soon usher in among them a day of reasonable sanitary intelligence. A belief in the communicability of tuberculosis is becoming widely diffused, and it would seem to be desirable, on the ground of policy alone, for the managers of summer, and especially of winter resorts frequented by consumptives, to let it be known in no uncertain way that their precautions against the spread of infectious diseases are effectually in line with the demands of modern sanitary science. The members of families bearing a hereditary susceptibility to the acquirement of this disease should strive to foster those conditions which favour a healthy, vigorous life in occupation, food, exercise and amusement and remember that for them more than for others it is important to avoid such occupations and places as favour the distribution, in the air or otherwise, of the tubercle bacillus. But when the individual has done what he can in making his surroundings clean, and in thus limiting the spread of the tubercle bacillus, there still remains work for municipal and State and national authorities in diffusing the necessary knowledge of the disease and its modes of prevention; in directly caring for those unable to care for themselves; in securing for all such freedom from contact with sources of the disease as the dictates of science and humanity may require. To health boards, either national or local, must be largely entrusted the primary protection of the people against the danger from tuberculous cattle. A national bureau of health might be of incalculable service in stimulating and harmonizing measures for the suppression of tuberculosis in various parts of the land, and in fostering research in lines which promise large practical return in the saving of life.