( 144 ) 
alfo often fharp or fait, from the Quicknefs 
of the Pulfe, from the Livelinefs and Brifk- 
nefs of the Perfon’s Conftitution ; and laftly, 
from a Roughnefs perceived in the Throat 
and Breaft. By this Difpofition they are 
very ufeful in Catarrhs, which come from 
the Thinnefs and Sharpnefs of the Juices, 
and their pricking of the Veffels, and run- 
ning fpeedily through them ; for the Se- 
cretions are diminifhed by an accelerated 
Circulation ; yet as true it is, they are in- 
creafed by the Thinnefs of the Blood, Ex- 
coriation or Abrafion of the Infides of the 
Veffels, and the Brifknefs of Circulation, 
attended with a conftant Irritation of the 
containing Tubes. Hereby they come in 
play for rheumatic, or other fix’d or erratic 
Pains, occafioned by the Thinnefs and Salt- 
nefs of the Blood 5 for by the firft, its glo- 
bular Parts being lefs, it enters the fmaller 
Veffels, which being conic, it muff flop, 
till by their Force it be attenuated. During 
this Delay, its Salts attrad more, and ail 
with a ftronger Stimulus upon the Capilla- 
ries, whereby they contrad, ftraiten, and 
hinder the free and ordinary Circuit of the 
Blood. Hence an Adion of the Blood 
againft 
