§ 233
The typical intermittent disease are those where a morbid state of unvarying character returns at a tolerably fixed period, while the patient is apparently in good health, and takes its departure at an equally fixed period; this is observed in those apparently non-febrile morbid states that come and go in a periodical manner (at certain times), as well as in those of a febrile character, to wit, the numerous varieties of intermittent fevers.