CLASS III. i . i . $. OF VOLITION. 289 



ed ftimulus is fo much greater after previous defect of ftimulus ; 

 and this is ftill of greater advantage, where the caufe of the d\i- 

 cafe happens to coniift in a material, which can be abforbed. 

 See Art. IV. 2. 8. 



M. M. Venefection. An emetic. A cathartic. Warm 

 bath. Opiurri a grain every half hour. Wine. Spirit of wine. 

 If the patient becomes intoxicated by the ^bove means, the fit 

 ceafes, and violent vomitings and debility fucceed on the fubfe- 

 quent day, and prevent a return. Blifters or (inapifms on the 

 fmall of the leg, taken off when they give much pain, are of ufe 

 in /lighter convulfions. Acupuncture. Electricity. Afper- 

 fion with cold water oil the painful part. A bag of mow or ice 

 applied on the pained part. 



9. Somnambulifmus. Sleep-walking is a part of reverie, or 

 ftudium inane, defcribed in Seel:. XIX. In this malady the pa- 

 tients have only the general appearance of being afleep in re- 

 fpedt to their inattention to the ilimulus of external objects, but, 

 like the epilepfies above defcribed, it confiils in voluntary exer- 

 tions to relieve pain. The mufcles are fubfervient to the will, 

 as appears by the patient's walking about, and fometimes doing 

 the common offices of life. The ideas of the mind alfo are obe- 

 dient to the will, becaufe the patient's difcourfe is confident, 

 though he anfwers imaginary queftions. The irritative ideas of 

 external objects continue in this malady, becaufe the patients do 

 not run againft the furniture of the room ; and when they ap- 

 ply their volition to their organs of fenfe, they become tenfible 

 of the objects they attend to, but not otherwise, as general fen- 

 fation is deftroyed by the violence of their voluntary exertions. 

 At the fame time the fenfations of pleafure in confequence of 

 ideas excised by volition are vividly experienced, aad other 

 feem to be excited by thefe pleafurable lenfations, as anpej* 

 the cafe of Matter A. Sea. XXXIV. 3.1. where a hiftory of a 

 hunting fcene was voluntarily recalled, wi f h all the pleafurable 

 ideas which attended it. In melancholy madnefs the patient is 

 employed in voluntarily exciting one idea, with thofe which are 

 connected with it by voluntary aflbciations only, but not fo vio- 

 lently as to exclude the ftimuli of external 'objects. In reverie 

 variety of ideas are occafionaliy excited by volition, and tliofe 

 which are connected with the ~n Cither by fenfitive or voluntary 

 aiibciations, and that fo violently as to exclude the ftimuli <: 

 ternal objects. Thefe two fitu.tions of cur fenfuai motion.?, or 

 ideas, referable convulfion and -piiepfv ; as in the former the 

 ftimulus of external objects is ftill perceiv lat- 



ter. Whence this dileafe, fo far from being connected with 

 fleep, though it has by univerfal miflake acquired ifs name from 



VOL, II. O o it,* 



