DISEASES CLASS II. i. 6, if- 



ally has a very putrid fmell, produce heftic fever or typhus ? See 

 ClafsII. 1.4. 1 6. 



1 1 . Febris a pure contagiofo. Fever from contagious pus. 

 When the contagious matters have been produced on the exter- 

 nal habit, and in procefs of time become abforbed, a fever is 

 produced in confequence of this reabforption j which differs 

 with the previous irritability or inirritability, as well as with the 

 fenfibility of the patient. 



1 2. Febris variolofa fecundaria. Secondary fever of fmall-pox. 

 In the diftincl: fmall-pox the fever is of the fenfitive irritated or 

 inflammatory kind ; in the confluent fmall-pox it is of the fenfi- 

 tive inirritated kind, or typhus gravior. In both of them the 

 fweliing of the face, when the matter there begins to be abforb- 

 ed, and of the hands, when the matter there begins to be ab- 

 forbed, ftiew, that it ftimulates the capillary vefTels or glands, 

 occafioning an increafed fecretion greater than the abforbents 

 can take up, like the aclion of the camharides in a blifter ; now 

 as the application of a blifter on the fkin frequently occafions 

 the ftrangury, which mews, that fome part of the cantharides is 

 abforbed ; there is reafon to conclude, that a part of the matter 

 of fmall-pox is abforbed, and thus produces the fecondary fever. 

 See Clafs II. 1.3.9. And not ^ m ply by its ftimulus on the 

 furface of the ulcers beneath the fcabs. The exfudation of a 

 yellow fluid from beneath the confluent eruptions on the face 

 before the height is fpoken of in Clafs II. I. 3. 2. 



The material thus abforbed in the fecondary fever of fmall- 

 pox differs from that of open ulcers, as it is only aerated through 

 the elevated cuticle ; and fecondly, becaufe there is not a con- 

 flant fupply of frefh matter, when that already in the puftules 

 is exhaufted, either by abforption, or by evaporation, or by its 

 induration into a fcab. Might not the covering the face af- 

 fiduoufly and exactly with plafters, as with cerate of calamy, or 

 with minium plafter, by precluding the air from the puftules, 

 prevent their contracting a contagious, or acefcent, or fever-pro- 

 ducing power ? and the fecondary fever be thus prevented entirely. 

 If the matter in thofe puftules on the face in the confluent fmall- 

 pox were thus prevented from oxygenation, it is highly proba- 

 ble, both from this theory, and from the facts before mentioned, 

 that the matter would not erode the fkin beneath them, and by 

 thefe means no marks or fears would fucceed. 



13. Febris carcinomatofa. Fever from the matter of cancer. 

 In a late publication the pain is faid to.be relieved, and the fe- 

 ver cured, and the cancer eradicated, by the application of car- 

 bonic acid gas, or fixed air. See Clafs II. i. 4. 16. 



14. Febris 



