SECT. XXXIV. 2. DISEASES OF VOLITION. 497 



voluntary faculty of the feriforium affetfed the ab- 

 forbent fyitem, as well as the fecerning one. 



8. In refpect to relieving inBammatory pains, and 

 removing fever, I have feen many mftances, as men- 

 tioned in Seel XII. 2. 4. One lady, whom I at- 

 tended, had twice at fome years interval a locked 

 jaw, which relieved a pain on her fternum with pe- 

 ripneumony. -Two other ladies I faw, who towards 

 the end of violent peripneumony, in which they 

 frequently loft blood, were at length cured by infa- 

 nity fupervening. In the former the increafed vo- 

 luntary exertion of the mufcles of the jaw, in the 

 latter that of the organs of fenfe, removed the dif- 

 eafe ; that is, the dilagreeable fenfation, which had 

 produced the inflammation, now excited the volun- 

 tary power, and thefe new voluntary exertions em- 

 ployed or expended the fuperabundant fenforial pow- 

 er, which had previoufly been exerted on the arte- 

 rial fyitem, and, caufed inflammation. 



Another cafe, which I think worth relating, was 

 of a young man about twenty ; he had laboured 

 under an irritative fever with debility for three or 

 four weeks, with very quick and very feeble pulfe, 

 and other ufual fymptorns of that fpecies of typhus, 

 but at this time complained much and frequently 

 of pain of his legs and feet. When thole who at- 

 tended him were nearly in defpair of his recovery, I 

 obferved with pleafure an inlanity of mind fuper- 

 yene: which was totally different from delirium as 

 he knew his friends, calling them by their names, 

 and the room in which he lay, but became vio- 

 lently fufpicious of his attendants, and calumniated 

 with vehement oaths his tender mother, who fat 

 weeping by his bed. On this his pulfe became 

 flower and firmer, but the quicknefs did not for 

 fome time intirely ceafe, and he gradually recovered. 

 In this cafe the introduction of an increafed quan- 

 tity of the power of volition gave vigour to thofe 



movements 



