( 31 ) 
the Particles worn off from the folid 
parts fall back again into thofe hollow- 
nelfes, to be again reftored to the blood, 
and thereby to be conveyed away to the 
external Fluid. The Fluid of thele cavi¬ 
ties is in divers things confonant to the 
Do^frin of the great Hiff cerates concern-' 
ing Flatus’s : Although I am not able to 
determine, why in divers places from the 
fame blood are difchargcd different Flu¬ 
ids 5 yet I hope that there wants but lit¬ 
tle for the determination of it, in regard 
*tis certain, that that depends not from 
the Blood, but from the Places them- 
felves; the confideration of which may 
be included in thefe three particulars. 
J’/Vj?,By confidering the Capillary vef- 
fels of the common internal Fluid 5 which 
is alone heeded by thofcj who aferibe all 
to the percolation through divers Pores j 
of which number I once was my felf. 
Secondly, By confidering the Affrofri^ 
ate internal Fluid % about which alone 
thofe are converfant, who attribute to e- 
very part a peculiar Ferment ; whole 
Opinion may be true in part, though the 
word Ferment depend on a comparifon 
taken from fo peculiar a thing. 
Thirdly, 
