Therefore the nurse should try to induce her patients to rest as much as possible—not to walk about, or to drag themselves to a park, and so tire themselves out. Exertion increases fever, and this will counteract what benefit might have been gained through the fresh air. They should be taught to sit comfortably in their gardens, on their front sidewalks, on their porches, at their open windows. Best of all, they should go upstairs to their bedrooms, and lie at full length on the bed placed next to the open window. By thus emphasizing the importance of rest—synonymous in this case with outdoor rest—the nurse is not only giving sound advice to her patient, but she is protecting the community from the ambulatory consumptive. Whenever possible, the patient should be induced to remain in bed permanently. The sooner the weary, advanced case gives up his painful wanderings, stops dragging himself from his own to his neighbour’s kitchen, or to the hospitable bar, the better for him and for the community. If he were to go to bed in a hospital, instead of at home, greater still would be the gain. The part of the community constituted by his family would be freed from danger, while he himself would be adequately cared for. Again we are struck by the coincidence of what is best for the patient being also best for those who surround him. =Fresh Air.= Fresh air is the second great essential in the treatment of tuberculosis, and every patient should be taught to spend as many hours as possible out-of-doors. The nurse must explain in words of one syllable why this is necessary—that clean, pure air contains life-giving oxygen, and that to breathe it entails little exertion on the part of the sick lungs. On the other hand, impure air contains no upbuilding principle, but greatly taxes the lungs and makes breathing difficult. Outdoors, every breath of air is clean and pure; indoors, especially in a closed room, one is soon reduced to rebreathing expired air, with all its impurities. Just as tainted meat or spoiled fruit or vegetables are unwholesome, and bad for the stomach and general system, so is impure air harmful to the lungs and general health. One organ surely deserves as much consideration as another. And when the lungs become impaired through disease, it is still more necessary to take care of them. They need to be strengthened in every way, in order to defy the inroads of tuberculosis. The nurse must make her points clear and emphatic; if the patient takes an intelligent interest in his treatment, it will become less irksome.