26 The FarrierV Kevj Guide. Chap. VI. 



But in all Fevers whatfoever, it is manifell, that the var 

 lious Changes made in the Blood, whether thefe are caufed 

 by an over Rarefadtion and Thinnefs, or an over Thicknefs, 

 mull affedl the Secretions ; but in thofe that are complicat- 

 ed, they muft occafion fome of them to be too liberal, wliile 

 others are too fparing ; and may alio occafion one Secretion 

 at one time to be too open, and at another lime too fparing. 

 Tj ,7 i> And thus far vi^e may here advance coa- 



tions may he af cernmg tiie becretions, that in all fuch \ evers 

 fededin Fe-vers, ^s proceed from an over Ra refaction, the Ic- 

 rous Part of the Blood, being render'd more. 

 than ordinary thin, muft needs go oft' in too great a Qiian- 

 tity, while the grofler Parts may be detained by the larger 

 Veflels, which compofe the fohd Parts, prefling upon thofe 

 that are fmaller, efpecially towards their Entrance into the 

 Glands j fo that by virtue of a fupeiior Weight in the larger 

 Veflels, nothing but the thinner Paris of the Sei^uz/i can pafs ' 

 through them ; and that Expence of the thinner Parts of 

 the Blood, if it is not ftopped in due Time, will leave the 

 remaining Mafs too thick, whereby other Symptoms will 

 be engendcr'd, and fuch as are common to Fevers of a more 

 complicated Kind : And when fuch a Change happens, 

 the Blood muft lofe its regular and uniform Amotion, and 

 the Difeafe will no longer conftitate one continued P>ver, 

 of one Period only, but admit of divers Periods. 



Now when fuch a Change happens in any fimple and 

 continued Fever, or if this has been the State of the Fever I 

 from the Beginning, the Secretions muft be irregular; forj 

 feeing the Entrance into all the Glands is not the lame, bu 

 that thefe Pailages are of divers Capacities and Sizes, the Part 

 of the Blood and Serum not being fufficiently communicatcd| 

 and rendered fo fmall as to enter into the fmalleft fecretory 

 Offices, muft therefore, when they meet with Oppofition, 

 and are deny'd Admittance iflto them, enter in an over greal 

 Quantity into thofe that are large enough to receive them 

 And thus we may eafily form an Idea how feveral Fermentl 

 may be engender'd in the Body during the Continuance o| 

 fuch Fevers, efpecially if it be co-nfidered, as was obferved 

 in another Place, that a Liquor confifting of but few Prin- 

 ciples, may, by their various Combinations, produce a grea 

 Variety of different Liquors. And therefore lince the Blood 

 is a Fluid confifting of different Principles, and undergo- 

 ing fo many different Changes, v»'hile its Secretions are thus 

 diftemper'd and irregular, it may, no doubly be fo ferment- 

 ed 



