=Ice=: A nursery refrigerator is well worth its cost. Since it is not always to be had, here is a good substitute. Set a high wire trivet inside a deep agate pan, lay a lump of ice on it, then turn over it a clean flower pot. Plug the hole in the flower pot, and cover thickly with a folded blanket if in haste. Time permitting, make a cozy of cheesecloth thickly padded with cotton batting and big enough to come to the table outside the pan. Empty the pan several times a day. With an awl and a toy hammer slivers of ice can be broken as needed. =Contagion=: Filth diseases—diphtheria, typhoid, etc.—spread through effluvia. Discharges of all sorts should be deluged with bichloride (see section Disinfectants). Even bath water needs a dose of it before emptying it. All manner of soiled things—towels, sheets, clothes—must be sunk in a tub of it as soon as taken off, and soaked several hours before washing. They need to be well boiled and dried in wind and sun. Eruptive ails—measles, smallpox, scarlet fever—have two periods of danger—in the fever stage before eruption, and when peeling. Measles and smallpox are most dangerous in fever; scarlet fever at the beginning of convalescence. Rub a patient in that stage well over with vaseline at least twice a day, bathing afterward with warm suds and putting on fresh clothes. Change bed linen the same; disinfect with extra thoroughness. Put bichloride in the water that wets the floor cloths, and be sure no dust is allowed to blow outside the room. =Disinfection=: Wet everything well with bichloride solution, remove furniture, burn mattress and comforts, boil and sun blankets. Scrape walls and ceiling, wash well with bichloride, wash floor and woodwork likewise, then scour with carbolic soapsuds. Fill cracks of all sorts with fresh putty, shut doors and windows tight, and paste strips of paper around them. Take off closet doors, but leave inside. Tack a strip of tin on the door of egress so it will lie flat against the casing. Put three bricks in the middle of the floor, set an iron skillet on them, put into it a pound of flowers of sulphur, wet it with alcohol, stick in a short length of fuse, light it, go out quickly, close the door for a minute, look in—if the sulphur is burning, all is well. Shut the door and leave undisturbed for twenty-four hours. Sulphur fumes make an end of germs. They also bleach out colors of all sort.