100 ANALYTIC SECT. XI. 
ecxxxiiI. The motion of the blood is generally 
allowed to be slower in the veins than in the 
arteries. Dr.'Thomson says, that he has seen the 
globules of blood in the veins, which he never 
could observe in the arteries. This is the strongest 
proof of a slower motion in the veins than in the 
arteries, that comes within my knowledge. 
ccxxxiv. Chronic Inflammation.—The capillary 
vessels are extremely liable to disease, from the 
facility with which they are affected by changes 
of temperature, The capillaries and the extreme 
arteries are the situation of acute inflammation, 
Chronic inflammation is, in most instances, con- 
fined to the capillaries ; that is to say, the arteries 
may resume their natural state of action while 
the capillaries continue turgid with blood, ‘This 
morbid state, I am of opinion, is kept up by 
defective venous irritability, 
ccxxxv, Chronic inflammation is often irichiont 
pain or increased heat, symptoms which are never 
absent in acute inflammation, | 
ccxxxvi. Increased expansibility of the extreme 
arteries, constitutes the most material part of acute 
inflammation ; abstraction of blood is therefore 
the most effectual method of reducing it: but 
chronic inflammation, depending chiefly on defee- 
tive expansibility of the veins, receives only a 
momentary relief from bleeding. Acute Hepa- 
titis is relieved by depletion of the blood-vessels ; 
On pee engi, a 
