1. Sodium bicarbonate, gr. x; Glycerin, fʒij; Water, enough to make, f℥ij. If the coating be of long standing, thick and dry, this solution may be applied with an applicator every five or ten minutes for one hour, and then the cleansing may be done with sponges. In these cases it is necessary to use a toothpick to gently loosen the sordes between the teeth. For dry or fissured lips and tongue, and for anointing the baby’s nose, the following will be found useful: 2. Lanolin, Vaselin, of each, ℥j; Oil of gaultheria, ♏︎xxx. Apply small quantity several times daily. In rare cases there is a persistent bleeding from the gums. The application, several times daily, of the following solution is effectual: 3. Tincture of myrrh, ♏︎xxx; Water, f℥j. _Mouth-Wash._ A solution of potassium chlorate and cinnamon water. DISINFECTION OF ROOMS. Seal all crevices about doors and windows. Keep the room closed for twenty-four hours to allow dust to settle. At the end of this time vaporize in a lamp from fifty to sixty paraform tablets to each 1000 cubic feet of space or vaporize 1 pound of formaldehyd solution in a _special apparatus_ designed for the purpose. If no special apparatus is obtainable, sprinkle sheets with the following solution, using a gallon of the mixture for a medium-sized room, and fill the room with steam: Formaldehyd sol., 4 parts; Glycerin, 1 part; Water, 2 parts. The steam and glycerin prevent to some extent the conversion of the formaldehyd gas into paraform, which in itself is useless. Another and more modern method is to pour 12 ounces of formaldehyd into a vessel and then add 4 ounces of crystals of potassium permanganate. Place the vessel in the room and leave the room closed for from four to six hours. To get rid of the fumes quickly after the disinfection is completed, sprinkle 4 ounces of ammonia on a sheet and leave the sheet in the room until the ammonia is evaporated. _Sulphate of copper_ solution is a very cheap disinfectant, and may be used to advantage in typhoid fever. After this treatment again keep the room closed for four or five hours. Then wipe floor, walls, and woodwork with corrosive sublimate solution (1: 2000) or carbolic acid solution (3 per cent.). DISINFECTION IN PRIVATE NURSING. In a private home (M. D. P., _American Journal of Nursing_) if contagion has taken the family by surprise and a room has not been especially prepared, leave in the room all the furniture and fittings in order that everything may be disinfected finally.