SUP. I. 12. 11. THEORY OF FEVER. 437 



Fifthly. When this torpor of the stomach is less in degree 

 or extent, and yet without recovering its natural irritability by 

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

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

 during syncope; a permanent defect of its activity and of that 

 of the upper intestines, remains, which constitutes apepsia, car- 

 dialgia, hypochondriasis, and hysteria. See Class I. 3. 1. 3. 

 and I. 2. 4. 5. 



Sixthly. If the torpor of the stomach be induced by direct 

 sympathy, as in consequence of a previous torpor of the liver, or 

 spleen, or skin, an accumulation of sensorial power will sooner 

 be produced in the stomach; because there has been no previous 

 expenditure of it, the present torpor of the stomach arising 

 from defect of association. Hence some fevers perfectly inter- 

 mit, the stomach recovering its complete action after the torpor 

 and consequent orgasm, which constitute the paroxysm of fever, 

 are terminated. 



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

 irritation, as to the want of food, an accumulation of sensorial 

 power soon occurs with an increase of digestion, if food be 

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

 in too great quantity after a very long abstinence. 



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

 of pleasurable sensation, as when sickness is caused by the sug- 

 gestion of nauseous ideas; an accumulation of sensorial power 

 soon occurs, and the sickness ceases with the return of hunger; 

 for in this case the inactivity of the stomach is occasioned by the 

 subduction of agreeable sensation, which acts as a subduction of 

 stimulus, and not by exhausting the natural quantity of sensofial 

 power in the fibres or nerves of the stomach. 



Ninthly. If the torpor of the stomach be induced by a two- 

 fold cause, as in sea-sickness. See vertigo rotatoria. Class IV* 

 2. 1. 10. in which the first link of association acts too strongly, 

 and in consequence expends more than usual of the sensorial 

 power of irritation; and secondly in which sensation is produced 

 between the links of association, and dissevers or enfeebles them; 

 the accumulation of sensorial power soon occurs in the stomach; 

 as no previous expenditure of it in that organ has occurred. 

 Whence in sea-sickness the persons take food with eagerness 

 at times, when the vertigo ceases for a few minutes. 



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

 lent exertion, as after intoxication, or after contagious matter 

 has been swallowed, or some poisons, as digitalis or arsenic; 

 an accumulation of sensorial power very slowly succeeds; 



