For suffocation from gas and poisonous vapors, get the person into the open air, relieve the lungs of the gas and restore natural breathing in the same way as directed in case of drowning. Throw cold water upon the face and breast and hold strong vinegar to the nostrils of the patient. If oxygen can be obtained promptly, it should be forced into the lungs. HOW TO REVIVE A FAINTING PERSON In a case of fainting lay the patient on his back with his head slightly lower than his feet. Be sure that the room is fully ventilated with fresh air, and rub gently the palms of the hands, the wrists, the arms and the forehead. Sprinkle a little cold water upon the face and hold to the nose a napkin upon which spirits of camphor, ether, ammonia or vinegar has been sprinkled. SUNSTROKE AND HOW TO TREAT IT In case of sunstroke get the patient into the coolest place you can, loosen the clothes about his neck and waist, lay him down with his head a little raised, and cool him off as promptly as possible. Cloths wrung out in cold water, applied to the head, wrists and soles of the feet, are the simplest applications. In severe cases of extreme prostration from sunstroke, the patient should be immersed in cold water, and even in an ice pack to get prompt results. After a little recovery is visible careful nursing is the next important thing. Sunstroke is commonly a summer disease, but the same conditions may come from overwork in extremely hot rooms. It begins with pain in the head, or dizziness, quickly followed by a loss of consciousness and complete prostration. The head is often burning hot, the face dark and swollen, the breathing labored, and the extremities are cold. If the latter detail is observed, mustard or turpentine should be applied to the calves of the legs and the soles of the feet, after which the hands should be chafed with flannels or with the palms of the hands. In case of genuine sunstroke lose no time in calling the doctor. FREEZING AND HOW TO TREAT A CASE In cases of severe freezing, when a person is apparently frozen to death, great caution is needed. Keep the body in a cold place, handle it carefully, and rub it with cold water or snow for fifteen or twenty minutes. When the surface is red, wipe it perfectly dry and rub with bare warm hands. The person should be then wrapped in a blanket and breathing restored if possible as already directed. It may be necessary to continue the treatment energetically for several hours. A little lukewarm water, or wine, or ginger tea is recommended for the patient to swallow as soon as possible. THE EYES AND HOW TO CARE FOR THEM