

SUP. I. 1 6. 4. THEORY OF FEVER. 501 



would be thus more powerfully excited by the increafcd actions 

 of the capillaries ; which exifted in confequence of the weak 

 action of the heart and arteries. This alfo refembles in fomc 

 rcfpects the continued fevers with weak pulfe, and with increaf- 

 cd activity of the capillaries. 



4 4. When a torpor of fome irritative motions occurs from a 

 previous exhauftion of the fenforial power of irritation by the 

 action of fome very great ftimulus, it is long before any accu- 

 mulation of the fenforial power of irritation is produced ; as is 

 experienced in the ficknefs and languor, which continues a whole 

 day after a fit of drunken nefs. But nevertheless there occurs 

 an accumulation of the fenforial power of aflbciation in the firft 

 link of the aflbciate train of motions, which is catenated with 

 thefe torpid irritative ones ; which accumulation is owing to de- 

 ficient excitement of that fenforial power in the firft link of the 

 aflbciate train. This firft link therefore exifts alfo in a lefs ac- 

 tive or torpid ftate, but the accumulation of the fenforial power 

 of aflbciation by its fuperabundance contributes to actuate the 

 fecond link of the aflbciate train with unnatural quantity of mo- 

 tion ; and that though its own natural quantity of the power 

 of aflbciation is not excited by the deficient action of preceding 

 fibrous motions. 



When this happens to the ftomach, as after its irritative mo- 

 tions have been much exerted from the unnatural ftimulus of 

 wine, or opium, or of contagious matter mixed with the faliva, 

 a torpor or inactivity of it fucceeds for a greater or lefs length 

 of time ; as no accumulation of the fenforial power of irritation 

 can occur, till the natural quantity, which has been previoufly ex- 

 pended, is firft reftored. Then the heart and arteries, which are 

 next in catenation, become lefs active from the want of fuffi- 

 cient excitement of the fenforial power of aflbciation, which 

 previoufly contributed to actuate them. This fenforial power 

 of aflbciation therefore becomes accumulated, and by its fuper- 

 abundance contributes to actuate the link next in aflbciation, 

 which has thus acquired fo great a degree of aflbciability, as to 

 overbalance the lefs quantity of the excitement of it by the tor- 

 pid action of the previous or firft aflbciate link. This happens 

 to the capillaries, when the heart and arteries are affected as 

 above by the torpor of the ftomach, when it is occafioned by 

 previous great expenditure of its fenforial power, and thus con- 

 ftitutes fever with weak pulfe, which is here termed ininitative 

 fever,, typhus mitior. 



5. When a deficiency of ftimulus is too great or too long con- 

 tinued, fo as to impair the life of the part, no further accumu- 

 lation of fenforial power occurs j as when the fkin is long ex- 



poi>d 



