£60 LECTURE Vr. 



ON THE ORGANS OF PERCEPTION AND 

 VOLITION. 



After the exhibition of the organs by 

 which animals are nourished, their curious 

 structures built up, and their various li- 

 quors and substances prepared, Mr. Hun- 

 ter shows the nervous system, or the means 

 by which parts of the body seem to have 

 sympathetic communication with one an- 

 other, and with the brain, which is com- 

 monly believed to be the organ of sen- 

 sation and volition. I have nothing to add 

 with respect to this subject in general, to 

 what is contained in the introductory lec- 

 tures. When I wrote them, I had not in- 

 deed attended to Mr. Hunter's views of 

 the nervous system in the lower kinds of 

 animals ; neither had I read Professor Cu- 

 vier's Lectures. It is therefore proper, on 



and diabetes, and that he finds theu* vessels very tur- 

 gid, with other signs indicative of their having been in 

 a state of considerable disorder ; which state, in diabetes, 

 however, may either be a cause or effect of renal irri- 

 tation. 



