IMPROVED. 93 



31ood, than what is required by the defcending Jor- 

 ta, which fpreads itfelf to the lower Limbs, ^r. 

 And that this muft be the true Do6lrine of Revul- 

 fion, is plain from my Text, to wit, T^hat e-very 

 Body flriking agai^ft another^ comtrnmicates Part of 

 its Motion thereunto, and confequenilv lofes fo much of 

 i its onj.m Motion. And under this View it may eafily 

 be gathered, what is to be done in every particular 

 Circumflance as to Blood-letting. For Inftance, if 

 we would prevent the Increafe of any Tumour from 

 the Blood ftagnating or flopping in or near the Fore- 

 Leg of a Horfe, or bring it about that as little Blood 

 as poffible ihould flow to that Leg in any given Space 

 cf Time ; I fay, in this Cafe, Blood fliould be taken 

 from the oppoflte Side , becaufe this is truly make- 

 ing what is called. Revulfion. Again, if Blood 

 be drawn from the Side afrefted, and from fome 

 Vein which receives the Blood from a Branch of 

 that Trunk of the Artery, which tranfmits it to the 

 iV eird Part j this, I fay, will caufe a greater Deriva- 

 tion or Flux of Blood to that Leg ; which appears 

 plrJn from the foregoing Do6lrine. And whofoever 

 rightly underftands thus much, will in every Exi- 

 gence eafily manage this Part of Cure to the greatefl: 

 Advantage. And as for what relates to the whole 

 Habit of Body or Mafs of Blood in all Lentors and 

 ^Mfcidities, as in the Cafe of the Farcin, and other 

 Diflempers which proceed from a Slownefs of the 

 Eiood's Circulation ; I fay , if there be a due 

 Strength and Eiafticity remaining in the Solids, 

 Phlebotomy or Blood-letting will caufe the remain- 

 ing Blood to circulate fafter than it did before fuch 

 Operation, and it will alfo become thinner and 

 warmer. I fpeak this with relation to a Lentor or 

 vifcous Quality in the Blood, which is a Clog to its 

 Circulation. On the contrary, in a Plethora or 

 Ov^er-fulnefs of the VeflTels, proceeding from aHorfe's 

 being kept too high, (as it is call'dj and uflng 

 too little Exercife, fo that the Powers of the Vijcern 

 CtUinot digefl and fecern what is received by the 



Stomach 



