The signs given by Willis are as nearly as may be the signs of infantile remittent fever, or worm fever, or febris synochus puerorum, or hectica infantilis, or febris lenta infantum, or an acute fever with dumbness, of which perhaps the first systematic account in this country was given by Dr William Butter of Lower Grosvenor Street, in 1782[11]. It is, he says, both a sporadical and an epidemical disease, “and when epidemical it is also contagious.” The age for it is from birth up to puberty; but “similar symptoms are often observed in the disorders of adults.” Morton, writing in 1692-94, clearly points to the same fever under the name of worm fever (febris verminosa). He adds it at the very end of his scheme of fevers, as if in an appendix, having been unable to find a place for it in any of his categories owing to its varying forms--hectic, acute, intermittent, continued, συνεχής, inflammatory, but for the most part colliquative or σύνοχος, “and malignant according to the varying degrees of the venomous miasm causing it[12].” Butter also recognizes its varying types: it has many symptoms, but they seldom all occur in the same case; there are three main varieties--the acute, lasting from eight to ten days up to two or three weeks; the slow, lasting two or three months; and the low, lasting a month or six weeks. The slow form, he says, is only sporadic; the low is only epidemic, and is never seen but when the acute is also epidemical; it is rare in comparison with the latter, and not observed at all except in certain of the epidemical seasons. Waiving the question whether the remittent fever of children, thus systematically described, was not a composite group of maladies, of which enteric fever of children was one, we can hardly doubt that Willis found a distinctive uniform type in the epidemic of 1661, in Oxford as he saw it himself, in other parts of England by report. It had symptoms which were not quite clearly those of enteric fever: spots, like fleabites, on the neck and other parts, swelling and suppuration of the glands in the hinder part of the neck, effusion of fluid on the brain and in the lateral ventricles, and the intestine free from disease[13].