214 PLEURISY, &c. 



iioftrils, in confequence of a reduction of the 

 fymptomatic inflammation upon the glands 

 of the head and throat, a flimy moiflure 

 appears in the mouth likewife; his whole frame 

 bearing evident proofs of univerfal oppreffion, 

 that ferioufly indicate the neceffity of expe- 

 ditious relief. 



Having taken a concife but accurate viev/ 

 6f the diftemper in its external appearance, it 

 becomes immediately neceffary to go out of 

 the iifua/ track, and explain the cauje as well 

 as thtjymptoms of difeafe. As the lungs are 

 known to emit in health a greater proportion 

 of perfpirable matter for tranfpiration than 

 any other part, it confequently follows that, 

 upon either a partial or univerfal obftrudlion 

 or fijppreffion, they become (by the compul- 

 five abforption of that very proportion) the im- 

 mediate feat of difeafe; and, where the blood 

 is previoufly vifcid, or in an indifferent ftate, 

 its tendency to inflammation is injlantly pro- 

 moted by the morbidity of the obfl:ru(fted per- 

 fpirable matter, which being thrown back upon 

 the lungSy they are fo overloaded as to be ren- 

 idered incapable of performing their fundions, 

 and paffing it into the circulation : inflamma- 

 tion 



