SEcr.XXXlII. i. DISEASES OF SENSATION. 449 



ritative fevers begin with a decreafed exertion of 

 irritation, owing to delea 01 ftimulus ; but that on 

 the contrary the feniitivc fevers, or inflammations, 

 generally begin with the iucreafed exertion of fen- 

 fation, as mentioned in Sect. XXXI. on tempera- 

 ments : for though the cold fit, \vhich introduces 

 inflammation, commences with decreafed irritation, 

 yet the inflammation itfelf commences in the hot 

 lit during the increafe of fenfation. Thus a com- 

 mon puftule, or phlegmon, in a part of little fen- 

 fibility does not excite an inflammatory fever ; but 

 if the ftomach, inteftines, or the tender fubftance 

 beneath the nails, be injured, great fenfation is pro- 

 duced, and the whole fyftem is thrown into that 

 kind of exertion, which conftitutes inflammation. 



Thefe fenfitive fevers, like the irritative ones, re- 

 folve themfelves into thofe with arterial ftrength, and 

 thofe with arterial debility, that is, with excefs or 

 defect of fenforial power ; thefe may be termed the 

 febris fenfitiva pulfu forti, fenfitive fever with ftrong 

 pulfe, which is the fynocha, or inflammatory fever ; 

 and the febris fenfitiva pulfu debili, fenfitive fever 

 with weak pulfe, which is the typhus gravior, or 

 putrid fever of fome writers. 



3. The inflammatory fevers, which are here term- 

 ed fenfitive fevers with flrong pulfe, arc generally 

 attended with fome topical inflammation, as pleu- 

 rify, peripneumony, or rheumatifm, which diftin- 

 guifhes them from irritative fevers with ftrong pulfe. 

 The pulfe is ftrong, quick, and full ; for in this fever 

 there is great irritation, as well as great fenfation, 

 employed in moving the arterial fyftem. The fize, 

 or coagulable lymph, which appears on the blood, 

 is probably an increased fecretion from the inflamed 

 internal lining of the whole arterial fyftem, the thin- 

 ner part being taken away by the increafed abforp- 

 of ^he inflamed lymphatics. 



The 



