Item every imposthume that is formed from contraries, the more direct it is the worse it is, for it shows the amount and the badness of the matter which nature cannot control or endure, because of its contrariety. For Galen says the disease in which are many and diverse kinds of matter is longer than the disease in which is one kind of matter only, though it be much, for nature cannot digest much and diverse matter, in a short time. This is how that should be understood, of compound diseases caused by heat and cold, as compared with diseases caused by heat only; and it is not right to take it of diseases compounded of heat and cold, as compared with
p.197those caused by cold444 only, for simple quotidian fever is longer than hybrid (?) tertian, caused by choler and phlegm.