under the usual drug-treatment, is, however, usually protracted to twice or thrice the duration of the disease, the patient being compelled to keep the house for five or six weeks, especially from fear of _anasarca_, or dropsy of the skin, frequently extending to the inner cavities of the body, and proving fatal. This dangerous complaint has been more frequently observed after mild cases of scarlet-fever than after malignant cases, probably from the fact that in mild cases the patient is more apt to expose himself, than when the danger is more obvious and all possible care is taken.--Sometimes also severe rheumatic pain, or rather neuralgia, in the joints, swelling of the glands, and other sequels prolong his sickness. I never observed a case of dropsy, or of neuralgia, after a course of water-treatment. 8. VARIETIES OF FORMS OF SCARLATINA. The above is the description of scarlet-fever, as it most frequently occurs. But far from taking always that regular course, the constitution of the patient, the intensity of the epidemy and the virulence of the poison, the treatment and other circumstances influencing the development of the disease, cause several anomalies, from scarlatina simplex to scarlatina maligna, which too often baffles all the resources of the Medical Art. 9. SCARLATINA SIMPLEX, OR SIMPLE SCARLET-FEVER. In the _mildest form_ of the disease, called _scarlatina simplex_, or _simple scarlet-fever_, there is no inflammation of the throat, the fever is moderate, and the patient suffers very little. Unfortunately this form is so rare, that many experienced physicians never saw a case. Probably, it was a case belonging to this class, which was mentioned a number of years ago by one of the writers on Priessnitz's practice, when a lady with scarlet-fever joined a dancing party at Graefenberg, a case for reporting which the author[2] has been ridiculed by the opponents of the Water-Cure, but which by no means belongs to impossibilities; for scarlatina simplex having been declared by eminent physicians (not of Priessnitz's school) to be "scarcely a disease,"[3] becoming fatal only through the officiousness of the doctor,[4] and other physicians of note recommending cold rooms and open air through the whole course of the disease,[5] or at least towards the latter part of it;[6] I do not see why a patient under water-treatment should not be safer in producing perspiration by dancing than in sitting in a cold room or in walking in the open street. The fact, of course, is unusual, and I do not exactly recommend its practice, but it is not at all impossible, and ridiculing the reporter of it shows either ignorance of the disease or a bad will towards the new curative system, to which those are most opposed who know the least of it. 10. SCARLATINA ANGINOSA, OR SORE-THROAT SCARLET-FEVER.