The temperature of the room should be 68 deg. F. Thermometers are cheap and an exact knowledge of the degree of heat in a sickroom is an essential requisite. Nothing drains the vitality during sickness quicker than varying degrees of heat and cold. It uses up nerve force and energy and renders the patient irritable and difficult to manage. The strictest attention should be paid to the ventilation of the sickroom. We are learning more and more that fresh air is essential to the speedy cure of all diseases and to the general well-being of the patient. A direct, continuous communication between the sickroom and out-of-doors is imperative. It is a splendid measure to use two rooms for the patient and to change him twice daily, and to air thoroughly the unused room. The sickroom itself should be large and in a quiet part of the house. In summer time the windows may be wide open, in winter months the degree of ventilation can be regulated by the thermometer. Many mothers fail to appreciate that drinking water is an important requisite in all ailments of childhood, should be given freely, but it should be known to be absolutely pure. The same rule applies to sponging the patient. It must be done every day; sometimes it is necessary to do it more often, but if so it will be so directed by the attending physician. THE DIET OF THE SICK CHILD.--Prescribing the diet of the sick child is an important undertaking. It should be remembered that during sickness the digestive capacity is reduced; consequently the food must be lessened in quantity and in strength. If the patient is an infant at breast the best way to accomplish our purpose is to give before each feeding two ounces of boiled water, cooled to the temperature of the body. This dilutes the mother's milk and renders it more easy of digestion. If bottle-fed, it is accomplished by replacing one-half of the milk with water. In certain diseases milk is totally withdrawn, but these cases will be noted when discussing the treatment of the various diseases. With older children, we give milk diluted with water, or gruels, soups, or cereals, as conditions warrant. Needless interference with the patient must not be indulged in. Sleep and quiet are essential features of nature's reparative process. It is seldom necessary to disturb a sick child for the giving of food or medicine oftener than every second or third hour. Medicine may always be given with food. Meddlesome interference, talkative attendants, or excessive noise may exhaust a child and may prolong and render dangerous or fatal a condition that would otherwise go on to recovery. One satisfactory movement of the bowel daily is essential to the comfort and progress of a sick person. If this does not take place naturally, it should be obtained by an enema. At the beginning of any illness in childhood it is a safe procedure to give a dose of a suitable cathartic as soon as it is discovered that the child is sick.