94 ^^^^ -^^^ 0/ Farriery 



Stomach in fuch Loads : I fay, in this Cafe , ancl 

 where there happens to be a Diminution of Perfpi- 

 ration, where the Mafs of Blood yet retains its na- 1 

 tural Fluxility, Phlebotomy will render the remain- | 

 ing Blood into fuch a State, as that it will circulate 

 flower, and become cooler. For in the firft Cafe, 

 a Diminution of the Refiftance in the Blood-Veffels, 

 will increafe the contra^ile Powers of thofe Veifels 

 themfelves, and confequently make them beat fa- 

 fcer, and circulate their Contents with greater Velo- 

 city or Swiftnefs : But in the latter Cafe, a Dim.inu- 

 tion of the Quantity of a fpirituous Blood, will lef- 

 {qti the Quantity of Spirit fecreted or feparated in 

 t^Q Brain j (v/hich is the Fountain from which all 

 the animal Spirits proceed;) and the Confequence of 

 this Diminution will be, that the Heart and Arte- 

 ries will not contraiTt fo often, nor fo ftrongly as 

 before, and therefore the Blood muft move flower 

 and become more cool. And on this depends the 

 whole Dextrine of Blood-letting. Thofe who are 

 yet more curious may confult Bellini^ de MiJJione 

 Sanguinis. 



Notwithftanding what I have faid about Revul- 

 fion, I think it a Kind of fplitting Hairs, when we 

 make fo great Diil:in<5lion between taking Blood 

 from the Side affeded, or from the cppofite ; fee- 

 ing Circulation is performed in fo fliort a Space as 

 five Minutes in a Man, and about an Hour's Time 

 in a Horfe: And our own Countryman, the fimous 

 V^iSy^tnham Sydenha^n, who, I believe, cur'd as many Sick of a 

 oSgthe ^/^^^^/y as any other Phyfician of his Time; I fay, 

 Pkurify. this Gentleman (with good Reafon) depended much 

 Took Blood upon Bleeding in this Difeafe, and orders Blood to 

 fn^ithea'^-be drawn from the affedled Side, which ftiews he 

 ledca S:dc. 1^^^ fome Thoughts of its being preferable, and that 

 it would relieve the Patient fooner, than Bleeding 

 in the contrary Side. The Doctor found his Ac- 

 count in it fo far, that it did relieve the Sick, al- 

 though I mufi own he did not proceed upon the 

 true Dodrine of Revuilion, laid down as above. 4 



Therefore, % 



