SUP. I. 12. ii. THEORY OF FEVER. 487 



Fifthly. When this torpor of the ftomach is lefs in degree 

 or extent, and yet without recovering its natural irritability by 

 accumulation of fenforial power, as it does after the cold fit 

 of intermittent fever, or after the operation of mild emetics, or 

 during fyncope j a permanent defect of its activity, and of that 

 of the upper mteftines, remains, which conditutes apepfia, car- 

 dialgia, hypochondriaiis, and hyfteria. See Clafs L 3. 1.3. and 

 I. 2. 4. 5.' 



Sixthly. If the torpor of the ftcmach be induced by direcl 

 fympathy, as in confequence of a previous torpor of the liver, or 

 fpleen, or (kin, an accumulation of fenforial power will fooner 

 be produced in the ftomach ; becaufe there has been no previ- 

 ous expenditure of it, the prefent torpor of the ftomach arifing 

 from defedl of aflbciation. Hence fome fevers perfectly inter- 

 mit, the ftomach recovering its complete action after the torpor 

 and confequent orgafm, which conftitute the paroxyfm of fever, 

 are terminated. 



Seventhly. If the torpor of the ftomach be owing to defect 

 of irritation, as to the want of food, an accumulation of fenfo- 

 rial power foon occurs with an increafe of digeftion, if food be 

 timely applied ; or with violent inflammation, if food be given 

 in too great quantity after very long abftinence. 



Eighthly. If the torpor of the ftomach be induced by defect 

 of pleafurable ienfation, as when ficknefs is caufed by the fug- 

 geftion of naufeous ideas ; an accumulation of fenforial power 

 foon occurs, and the ficknefs ceafes with the return of hunger , 

 for in this cafe the inactivity of the ftomach is occafioned by the 

 fubduUon of agreeable fenfation, which atls as a fubduClion of 

 ftimulus, and not by exhaufting the natural quantity of fenfori- 

 al power in the fibres or nerves of the ftomach. 



Ninthly. If the torpor of the ftomach be induced by a two* 

 fold caufe, as in fea-ficknefs. See vertigo rotatoria. Clafs IV. 

 2. i. 10. in which the firft link of alfociation ads too ftrongly, 

 and in confequence expends more than ufual of the fen ferial 

 power of irritation ; and fecondly in which fenfation is produc- 

 ed between the links of aflbciation, and di'fevers or enfeebles 

 them , the accumulation of fenforial power icon occurs in the 

 ftomach ; as no previous expenditure of it in that organ has oc- 

 curred. Whence in fea-ficknefs the perfons take food with eu- 

 gernefs at times, when the vertigo ceafes for a few minu 



Tenthly. If the gaftric torpor be induced by previous vio- 

 lent exertion, as after intoxication, or after contagions matter 

 has been fwallowed, or fome poifons, as digitalis, or an, 

 an accumulatipn of fenforial power very ilovvly fucceeds ; 



wi 



