The bags used in Baltimore are made somewhat like the ordinary Boston bag, about fourteen inches long, and of good black leather. They weigh a few more ounces than those used by other associations, but they last longer. It must also be remembered that the bag used by the tuberculosis nurse, no matter how heavy it is when she starts forth on her rounds, grows lighter and lighter as she goes from house to house, leaving the supplies. Thus, at the end of the day, when she is most tired, it is practically empty. =Prophylactic Supplies.= The prophylactic supplies used for the patients consist of tin sputum cups, cardboard fillers, paper napkins, waterproof pockets, disinfectant, and books of instruction. The first three are of primary importance. The Health Department of a community usually provides these supplies, even when the nursing work is carried on by a private association. Thus, in Baltimore, where for six years the tuberculosis work was done by the Visiting Nurse Association, an arrangement was entered into between this Association and the State Board of Health, according to which, the latter paid for and provided the supplies which the nurses distributed. The only condition imposed was that each case should be reported to the Health Department, and that the Health Department should be constantly advised as to the number of cases under supervision. If no such arrangement is possible, then the private association supporting the nurse must be put to the additional expense of buying the supplies. It is impossible to make the patients themselves pay for them. Naturally, they consider them a nuisance and a bother, and it is difficult enough to persuade them to use them, even when given free. The cost is not great, however. Tin sputum cups, (in lots of 5000) 7 cents apiece. Fillers, (in lots of 1,000,000) $3.50 per thousand. Paper napkins, (in lots of 5,000,000) $.55 per thousand. Disinfectant, 10 cents a bottle. Waterproof pockets 4 cents apiece. Books of instruction 2 or 3 cents apiece.