34* DISEASES Sect. XXXIV. 3. 3. 



of vehement exertion, contribute to relieve pain, by expending 

 a large quantity of fenforial power. 



Thofe fits generally commence duririg fleep, from whence I 

 fuppofe they have been thought to have fome connexion with 

 fleep, and have thence been termed Somnambulifm ; but their 

 commencement during fleep is owing to our increafed excita- 

 bility by internal fenfations at that time, as explained in Sect. 

 XVlII. 14 and 15, and not to any fimilitude between reverie 

 and fleep. 



3. I was once concerned for a very elegant and ingenious 

 young lady, who had a reverie on alternate days, which continu- 

 ed nearly the whole day •> and as in her days of difeafe fhe took 

 up the fame kind of ideas, which fhe had canverfed about on 

 the alternate day before, and could recollect nothing of them 011 

 her well day ; (lie appeared to her friends to poiTefs two minds. 

 This cafe alfo was of the epileptic kind, and was cured, with 

 fome relapfes, by opium administered before the commencement 

 of the paroxyfm. 



4. Whence it appears, that the methods of relieving inflam- 

 matory pains, is by removing all ftimulus, as by venefection, 

 cool air, mucilaginous diet, aqueous potation, filence, darknefs. 



The methods of relieving pains from defect: of ftimulus is by 

 fupplying the peculiar ftimulus required, as of food, or warmth. 



And the general method of relieving pain is by exciting into 

 action fome great part of the fyftem for the purpofe of expend- 

 ing a part of the fenforial power. This is done either by ex- 

 ertion of the voluntary ideas and mufcles, as in infanity and 

 convuffion 5 or by exerting both voluntary and fenfitive mo- 

 tions, as in reverie ; or by exciting the irritative motions by 

 wine or opium internally, and by the warm bath or blifters ex- 

 ternally ; or laftly, by exciting the feniitive ideas by good news, 

 affecting ftories, or agreeable paflions. 



SECT. 



