The Treatment of Burns. Burns require more careful treatment on account of the wide surface of the skin usually destroyed. The layer of the skin that is most alive and most active in the process of repair is the outer layer (the epithelial, or epidermis). A burn, or scald, if at all severe, is likely to destroy almost the entire thickness of this, over its whole extent. This gives both a wide surface for the absorption of pus germs and a long delay in "skinning over," or healing. As the same heat that made the burn has usually destroyed any germs that may be present, it is not necessary to wash or clean a burn, like a wound, unless dirt has been rubbed or sprinkled into it after it has been made. The first thing to be done is to coat it over so as to shut out the air; and this, for a slight burn, can be very well done by dusting it over with baking soda or clean flour or with one of the many dusting, or talc, powders on the market, containing boracic acid, or by laying over the burn a clean cloth soaked in perfectly clean olive oil or vaseline. If the oil or vaseline is not perfectly clean, put it on the top of a stove and heat it thoroughly before using. Dress with soft, clean cotton rag or lint as before, keeping wet with the alcohol lotion (one part of alcohol to eight of water) if there be much pain, or throbbing. If the burn is deep or the pain at all severe, it is best to call in a doctor, as bad burns are not only agonizingly painful, but also very dangerous on account of the wide, raw surface that they leave open to entrance of pus germs for days and even weeks. Until a doctor can be secured, coat it over with some non-irritating powder or oil, as for lighter burns, or hold it in warm water to exclude the air. Do not try to clean a burn. You only increase the pain of it and probably add to the risk of infection. If your clothing ever catches fire, wrap yourself up at once in a blanket or rug to smother the flame. Remember that running will supply more air to the flame and cause it to do more damage. If you have nothing at hand in which to wrap yourself, lie down on the floor, or ground, and roll over and over until you have smothered the flame.