The great Heats and intolerable Thirst are allayed by a plentiful and repeated drinking of Water, wherein Bread has been macerated, Ptisan of Barley, of Rice, Chicken-Broth, dissolving therein Sal Prunel, or purified Nitre, mixing by intervals a few Drops of Spirit of Sulphur, or of Nitre dulcified, or of Vitriol; as also the Confections of Alkermes, Syrup of Lemons, _de Ovo_, or any other gentle Cordial, to prevent an Over-charge and Relaxation. All these Remedies properly made use of, and managed with Prudence, are sufficient to satisfy the divers Indications of this second Class, provided the terrible Prejudice of the Impossibility of a Cure, the Consternation, and the Despair, do not suspend their Action: And we could, if the Time would permit, give several Instances of such, as being supported by their Hopes, Courage, and Firmness, have experienced the good and wholsome Effects thereof: So that Nature being thereby strengthened, comforted, and freed in part, of the noxious Ferment that oppressed her; and above all, being delivered from the Danger of the internal Inflammations, by the means of the external Eruptions, I mean the Carbuncles, Buboes, Parotides, _&c._ there remains nothing to be done, but to treat methodically these sorts of Tumours, to which we have particularly applied our selves from the beginning of the Distemper to the end; and that with the greater Diligence, by reason, as we have already remarked, the Destiny of the Patient depended almost always on the Success of these sorts of Eruptions, the manner of treating which, we shall give by and by, according their several Varieties. _The Method used in treating the Sick of the_ THIRD CLASS. It would be altogether needless to enter into the particulars of the Method we used in treating the Patients of this third Class, since the Symptoms they were attack'd with, were the same with those which we have mention'd in the two preceeding Classes; so that they succeeded mutually each other, and the Symptoms related in the second Class, were the Forerunners of those described in the first; whence it is easy to judge that we have here nothing to do but to use successively the Medicines mentioned before. The Observation that we thought fit to insert between the third and fourth Class, and in which it is shown, that several infected Persons perished in a very short Time with Symptoms very moderate, or much less violent than what we generally observe the same Symptoms to be in malignant or common putrid Fevers. This Observation, I say, may instruct us, that this Sort of infected Persons in whom often there only appear a small Weakness, and a very great Consternation, demands as much Care as those in whom the Symptoms are more considerable, and on the least Appearance of their being seized, there ought immediately to be used, besides generous Remedies, every Thing that is proper to sustain their Strength and encourage them. _The Method of treating the Sick of the_ FOURTH CLASS.