2. We are taught, by the facts which have been mentioned, the reason why physicians have differed so much in their accounts of the same remedies, and why the same remedies have operated so differently in the hands of the same physicians. It is because they have been given without a reference to the different states of the system, which have been described. Dr. Sydenham says, that he cured the first dropsical patient he was called to, by frequent purges. He began to exult in the discovery, as he thought, of a certain cure for dropsies, but his triumph was of short duration. The same remedy failed in the next case in which he prescribed it. The reason probably was, the dropsy in the first case was of a tonic, but in the second of an atonic nature; for the latter was an ascites from a quartan ague. It is agreeable, however, to discover, from the theory of dropsies which has been laid down, that all the different remedies for these diseases have been proper in their nature, and improper only in the state of the system in which they have been given. As the discovery of truth in religion reconciles the principles of the most opposite sects, so the discovery of truth in medicine reconciles the most opposite modes of practice. It would be happy if the inquirers after truth in medicine should be taught, by such discoveries, to treat each other with tenderness and respect, and to wait with patience till accident, or time, shall combine into one perfect and consistent system, all the contradictory facts and opinions, about which physicians have been so long divided. 3. If a state of great morbid action in the arteries has been demonstrated in dropsies, both from its symptoms and remedies, and if these dropsies are evidently produced by previous debility, who will deny the existence of a similar action in certain hæmorrhages, in gout, palsy, apoplexy, and madness, notwithstanding they are all the offspring of predisposing debility? And who will deny the efficacy of bleeding, purges, and other debilitating medicines in certain states of those diseases, that has seen the same medicines administered with success in certain dropsies? To reject bleeding, purging, and the other remedies for violent action in the system, in any of the above diseases, because that action was preceded by general debility, will lead us to reject them in the most acute inflammatory fevers, for these are as much the offspring of previous debility as dropsies or palsy. The previous debility of the former differs from that of the latter diseases, only in being of a more acute, or, in other words, of a shorter duration.