IMPROVED. 3.3 



be (hewn hereafter,) but by caufing an uneafy Sen- 

 fiition, and irritating the Glands of the Guts, and 

 thereby obliging tliem to throw oft their Contents 

 both good and bad. This, I fay, makes what we 

 term Revulfion ; as alfo better fits the Glands to 

 perform their Office of Secretion, not only in the 

 Mefentery, or Cawl, but quite through the whole 

 Body (if the Purge be prepared as it ought) when 

 a Horfe can bear purging. And I might, under 

 this Head, plainly fhew, how ridiculous it is for 

 zny Perfon to imagine that a Purge carries off this or 

 that particular Humour, any more than that the 

 Elood can be freed from the mofl offending Part of 

 it by Phlebotomy, in every or any Cafe whatfoever. 

 And, although I am convinced that what I am now 

 writing is in direft Oppofition to the common re- 

 ceived Opinion j yet I doubt not making it plain 

 as the Sun at noon-Day, 'viz. that Purging is only 

 making Revulfion in a particular Manner, and that 

 the Good it produces flows from a different Spring 

 than what is commonly thought. 



CHAP. VI. 



Of F^'vers. 



MOST Authors, who have treated of /V^rv;/ In Of Fever: 

 Horfes, have defined fuch Difeafes under a 

 preternatural Heat of the Blood : And the French 

 Farrier, Solleyfell, has in particular compared " a 

 " Fever to the Ebullition or working up of Wine 

 *' (for they have little Malt-Liquor in France;) in a 

 " Cask, where the fame being agitated, heated, di- 

 " iated, and fermented, and having no Vent, breaks 

 " impetuoufly through all Obflacle?, fpreading its 

 " Steams and Vapours all around; and appears fo 

 *' muddy, that we cannot difcern the leaft DroD 

 '' cf V/ine in the Veffel. Bat after thefe difor- 

 '^ dxily Motions, all the Impurities that were in 

 C 5 '^ the 



