80 ANALYTIC SECT. VIII. 
circulation, from which it is convenient to set out. 
In the application of muscular expansibility to 
the motion of the blood, I have been anticipated 
by Dr. Carson ; and although I must, in a great 
measure, renounce my claim to originality in 
this part of physiology, it was with much plea- 
sure that I perused his work, which is, in my 
opinion, the best which has been published on 
this subject since Harvey. Dr. Carson has not, 
indeed, sought after the cause of expansibility, 
but he has pointed out its influence on the motion 
of the blood, with a force of argument, and clear- 
ness of demonstration, highly creditable to his 
ingenuity and judgment. The side blow which 
he has aimed at Hialler’s authority, will not, 
however, be hastily forgiven by those whose 
knowledge of physiology is confined to their 
library and the dead subject. 7 
