366 HUNTER S. 



produces an increafed fecretion of lymph and 

 chyky which, in the procefs of abforption and 

 contribution to the excrementitious expulfion, 

 is proportionally fupplied (or the vefTels re- 

 pleniflied) from even the moft diftant part of 

 the extremities ; which evidently accounts for 

 the vifible advantages arifing from a courfe of 

 phyfic, when a horfe labours under the in- 

 con veniencies refulting from repletion ; and is 

 faid, HI the Vulcanian phrafeology , to have the 

 HUMOURS fallen into the legs, or fixed upon 

 any particular part of the frame. 



Thus much is introduced to render perfedly 

 clear, what' I term the mechanical procefs 

 of purgation ; by Itridlly attending to which 

 it will evidently appear, that, the weaker a ca- 

 thartic is in its property, the lefs it will affed: 

 the fluids fufpended in different parts of the 

 frame; for its firjl Jihnulus a6ling upon the 

 nervous fyftem as the mojl irritable^ the lym- 

 phatics and ladeals become only the fecon- 

 dary feat of provocation, and more proportio- 

 nally aded upon as the physic is increafed 

 •in its power of ftimulation. 



From this very neceiTary remark, I mean to 



infer. 



