An accident of that kind happening to the lungs, is more dangerous and difficult to cure, than when the same takes place in most other parts of the body; because the lungs are vital organs, essentially necessary to life, and when their motion is impaired, other animal functions are thereby injured; because they are of an uncommonly delicate texture, in which a rupture having once taken place, will be apt to increase; because they are in constant motion and exposed to the access of external air, both of which circumstances are unfavourable to the healing of wounds, and because the mass of blood distributed to the whole body passes previously through the lungs, and consequently the blood-vessels of this organ are more numerous than those of any other part of the body. When we consider these peculiarities, it is natural to conclude, that every wound of the lungs must necessarily prove mortal; but experience has taught the contrary. Many wounds of the lungs heal of themselves, by what is called, the first intention. The physician may prevent a fever, by ordering the patient to lose blood in proper quantities, and he may regulate the diet; but the cure must be left to nature, which she will perform with greater certainty, if she is not disturbed by any of those balsams which the wounded are sometimes directed to swallow on such occasions. But when the wound, either from injudicious treatment, or from its size, or from the bad habit of the patient, degenerates into an ulcer attended with hectic symptoms, the disease must be treated as if it had arisen from any of the other causes. The pleurisy, or inflammation of the lungs, is a disease more frequent in cold countries than in mild; in the spring than in the other seasons; and more apt to seize people of a sanguine constitution than others. Plentiful and repeated bleedings, fomentations, blisters near the affected part, and a cooling, diluting regimen, generally remove it, without its leaving any bad consequence. Sometimes, by the omission of bleeding in due quantity at the beginning, and sometimes in spite of all possible care, it terminates in an abscess, which, on bursting, may suffocate the patient; or, if the matter is coughed up, becomes an open ulcer, and produces the disease in question.