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CHAP. X. Of the Signs and Cure of the putrid Synochus, or continual Fever.
BEsides what is said before of the putrid Synochus in general, there are moreover certain Varieties, or Irregularities (not to say Species) of this Disease, by which this Fever somewhat de∣clines from this common Rule; and by reason of certain accidental Affects, gets new Names and Distinctions.
First therefore, a putrid Synochus is wont to be divided into a symp∣tomatick and an essential one. That is said to be symptomatick which draws its Origine from some other Affect or Disease first raised in the Body; so that the Fever is only the symptome coming upon that other Affect, as that is accounted which depends on a Squinancy, Plurisie, Wound, Ʋlcer, &c. in or near some principal Part; of which we think somewhat otherwise; to wit, that in Truth there is no Putrid Fever which is merely symptomatical; occasionally perchance it may arise from some other Affect; but it is founded immediately in the sulphu∣reous part of the Blood too much heated, and as it were kindled: for, without a Procatarxis or precedent Indisposition of the Blood, the foresaid Affects seldom, or scarce at all, bring a putrid Fever.
As to the Squinancy, Plurisie, and the like, I say that those are Products of the Fever, or Affects following it, but not Causes of it; for most commonly an evident Cause has preceeded, which has pro∣duc'd the feverish Effervescence of the Blood, as a taking of Cold, an Evacuation restrain'd, &c. afterward, tho the Diseas'd are not forth∣with openly feverish, nevertheless, a greater Ebullition of the Blood than usual is raised; as we may easily gather from the Urine, Pulse, and Restlesness of the whole Body. After some Days, (sometimes sooner, sometimes later) an Inflammation is produced in this or that part; whereof a probable Reason enough is thus assigned: The Blood by reason of the Effluvia retained (which are like a Ferment) is in∣creas'd in bulk, and swells its Vessels more than usually; and when through defect of Ventilation, it is straitned in the space of its Circu∣lation, it readily finding a way, springs forth of the Arteries; and be∣ing extravasated, upon the course of Circulation its being interrupt∣ted, it is raised into a Tumour; and because by that kind of Tumour a Heat and Pain in the Part are made more intense, the Blood is more troubled in its motion, and so the Fever, first kindled, is more aggra∣vated.