These observations are of a more general nature belonging to all kinds of fevers: I shall now descend to the particular species of them. Wherefore if there has been only one fit, which has gone off, and that arose either from the inguen(3), or from fatigue, or from heat, or from some such accident, so that there is no reason to apprehend danger from any internal cause, the following day, when the time of the fit has passed without any disorder, food may be given. But if the heat come from within; and a heaviness of the head or præcordia has followed; and there is no apparent cause for the disturbance of the body; although health has followed one fit, yet because a tertian may be apprehended, the third day is to be expected; and when the time for the fit is over, food is to be given, but very little of it; because a quartan may also be feared. But upon the fourth day, if the body is well, it may be freely used. If indeed the paroxysm has followed upon the second, third, or fourth day, then we may conclude it to be a disease. But the method of cure in tertians and quartans (whose periods are certain, whose fits leave no indisposition, and the intervals are in a good measure calm) is easier: of which I shall speak in their proper place. At present I shall treat of those, which distress every day. Wherefore it is most convenient to give food to the patient every third day; that the abstinence of one day may lessen the fever, on the other nourishment may recruit the strength. But when the fever is quotidian, and goes entirely off, it ought to be given as soon as the body becomes well. But if though there are not distinct fits immediately succeeding each other, yet there are feverish heats without intermission, and these daily increase without going entirely off, then _it is to be allowed at that point of time_, when a greater remission is not to be expected: if on one day the fit is more severe, and on another milder, after the most severe. Now commonly a more severe fit is followed by an easier night: whence it happens also, that a more troublesome night precedes a severer fit.