When you have discovered the extent of the burn, if it is at all serious, send for the doctor at once, and in the meantime treat the burn as you have already learned to do in minor burns. FIRE IN BUILDINGS Keep cool, in order to remember what to do, and do it quickly. Turn in a fire alarm at once. Send some one else if possible who may not know what to do to the fire. The quickest way is by telephone call, "Fire Department," and tell them the exact address of the building where the fire is. Or you may go to the nearest alarm box, smash the glass, open the door, and pull down the hook that sounds the alarm. (Generally the directions are printed on the box.) If you cannot sound the alarm alone, call upon the nearest person to help you. _Wait there until the firemen arrive and direct them to the fire._ When the firemen come do just as they tell you, for they know exactly what to do. People trying to escape from a burning building often get frightened and then there is a panic. Panic kills more people than fire. Keep cool, and others will follow your example. Never jump from a window unless the flames are so close that it is your only means of escape. If outside a burning building put mattresses and bedding piled high to break the jumper's fall and get a strong hold on a rug to catch the jumper, and let many people hold the rug. If the fire is just beginning, it can easily be put out by smothering it with a rug or blanket; sand, ashes, salt, or a few pails of water will answer the same purpose. Keep the doors and windows closed if possible to prevent draughts from fanning the flames to fiercer effort. Remember this point when you go into a burning building, and leave some responsible person guarding the door, in order that it may not be left open by some one in excitement and the flames fanned beyond control. If you need fresh air in your search for people in a burning building, open a window, put out your head and draw your lungs full of fresh air and then close the window again. In any case it is best to tie a wet handkerchief or towel over the nose and mouth while in a burning building, as this will prevent you from breathing a good deal of smoke. In searching for persons remember always to begin at the top of the building if possible, and search every room. When on stairs keep to wall side, where air is relatively free from flames and smoke. If a room is locked, try to rouse the people by pounding and calling and then break in the door if unsuccessful in rousing them, and you suspect there is some one there. Remember, the air within six inches from the floor is usually free from smoke, and if the smoke makes breathing too difficult, you can still accomplish your end by crawling along the floor and dragging the rescued one with you as you learned to do in gas rescue.