Hcemajlatics. 125 
fined circulating Arteries^ are not made plena 
gurgite^ that is, with the full Force of cheat- 
terial Blood ; for if they were, then all the 
(ccretory Veffels and Glands would fwell as 
they do in this Experiment with Water; as 
they do alfo in dropfical Cafes, when the re- 
dundant thin Fluid is feparated coo freely from 
the Blood. Thefe Secretions muft therefore 
be made more gradually and fparingly, fo as 
to be carried forward in thofe very fine VeflTels, 
by an alternate pulfive Force of the arterial 
Fluid, and attraftive Power of the fine fecern- 
ing Veffels ; affided alfo by condanc Vibrati- 
ons, for the animal Fluids and Solids are in an 
inceffant mutually vibrating State. In this 
manner doubtlefs the plentiful Secretions arc 
made into the Stomach and Guts, as alfo in 
the Pancreas, mefcnteric, falival and other 
Glands of the Body. And thus alfo the per- 
fpiring Matter is carried off, not alone by 
the meer protrufive Force of the arterial Flu- 
id, but alfo by the Warmth and mutually vi- 
brating Adion of the Fluids and Solids. And 
when by Labour or other brisk Exercife, the 
Velocity of the Blood is increafed, and con- 
fequeiitly its Warmth, then not only its 
Force, but the Vibrations alfo of the Fluids 
. and 
