The patient must have his hands and face washed every morning and evening. He should always be washed with warm water. To tell if the water is of the right temperature, dip the tip of your elbow into it. Your hands are not sufficiently sensitive to warmth to be safe guides. Hot bottles are often needed by invalids. They should never be filled with boiling water. They must be made of earthenware and covered with flannel jackets. The water must be of a temperature of about 100° to 120° Fahrenheit. They should never be left in the bed after they have got cold. Another point to remember is that you must see that the bottles do not leak. We have seen a nurse place an uncovered bottle of boiling water at the feet of a patient with paralysis. He did not feel the heat, but next morning the nurse found, to her horror, that the patient’s feet had been burned out of all recognition, and from these burns he died. We have seen and heard of many similar cases, but fortunately the result is not often so disastrous. The ventilation of the sick chamber is very important. Unless the room is very draughty, it is usual to leave the window open throughout the day. If the weather is gusty, or the situation is exposed, some other method of ventilation may be acquired. A fire is a very satisfactory, though not a theoretically perfect, method of ventilating a room. As a matter of fact, the ventilation of the room depends entirely upon the room itself and its arrangement. On his first visit you should ask the physician how the room should be ventilated, and this will relieve you from any responsibility in the matter. Remember that the commonest of all mistakes in the treatment of illness is insufficient ventilation. We were going to devote the whole of this article to the question of diet in sickness, but our space is more than half taken up by preliminary matters, so we must be brief. The question of feeding invalids is always a troublesome one. People who are sick and are in bed all day, lose their appetite, take violent dislikes to some articles, and develop an abnormal desire for dietetic curiosities which they would never eat when they are healthy. We remember attending a woman who refused to eat anything we put before her. We tried milk, very nice puddings, and chickens, and we do not know what not. But, no, all to no purpose! She would eat nothing. The matter was becoming serious, for the poor woman had had nothing to our knowledge for three days, and we were thinking whether forcible means would have to be used to give her nourishment. But the extraordinary part of it was that she gained strength and was recovering from her disease by rapid strides.