But where there is that kind of tertian, which the physicians call semitertian, it requires careful observation to prevent being deceived. For it has generally more frequent paroxysms and intervals, so as it may seem a different kind of distemper; and the fit is protracted to twenty-four hours(8) and thirty-six: that what is really the same, does not seem to be so. And it is highly necessary both that food should not be given, unless in that remission, which is certain: and as soon as that comes, to give it immediately. And many patients die suddenly by the mistake of their doctor either way. And unless there is some important reason against it, blood ought to be let in the beginning; and then food should be given, such as will not raise the fever, and yet support under its long continuance.