3d. By suppuration, or the conversion of the effused blood into pus, or matter, which, gradually pressing on the skin, causes absorption of its texture till an aperture is formed and the contents of the abscess escape; and 4th. By gangrene, or mortification, which, when a part has been killed by excessive inflammation, forms a line of demarcation, and separates the dead from the living part. The symptoms, general and local, of inflammation, are materially altered by the structure of the part in which the disease takes place; thus, the heat is much less, the pain infinitely more acute, and the pulse hard and sharp, when the inflammation attacks the _serous_ membrane, or that tissue which lines the chest; while in the _mucous_ membrane, or that which lines the mouth and stomach, there is less pain, more heat, and a full, round pulse. The treatment of inflammation is both general and local. By the first is understood, bleeding from the arm, tartar emetic, opium, and saline purgatives; the latter, leeches, cupping, blisters, baths, and fomentations. CHOKING. When a mass of food, such as a piece of meat, potato, or other substance, lodges in the fauces, or the base of the tongue, if in sight, but too far for the fingers to reach, it should be immediately grasped with a pair of pincers, or, what is better, a pair of curling tongs, and dragged out. If neither are at hand, and as time is precious, press down the tongue with the fingers, and tickle all the surrounding parts with a feather, so as to induce heaving or vomiting, Nature by that action often getting rid of its obstruction. If, however, none of these means present a chance of relief, use the point of the curling tongs as a probe, and push the obstruction into the gullet. However quickly these operations may have been carried on, the sufferer may have died before the obstacle has been displaced, or become so apparently lifeless as seemingly to render all further steps useless; this, however, is not the case, cold water must be dashed on the face and chest, ammonia applied to the nostrils, and the lungs inflated with air. When the lodgement has been lower down and taken place in the gullet proper—a fact that can be ascertained by an examination of the mouth, and also by the mute indication of the sufferer’s fingers—the impediment to its descent to the stomach proceeds from some spasmodic action into which some of the muscular fibres are thrown, causing them to grip the body in its descent and retain it in that position, while its bulk pressing forward on the windpipe, causes the danger to life that results from the accident. Two or three sudden or sharp slaps between the shoulders, or water dashed abruptly in the face, will often, by producing a sudden gasp, release the spasm and cause the descent of the object; if not, a probe, flexible tube, or a quill, must be employed, and the substance pushed past the constriction; when,