1008 WITHOUT CEREBRAL HEMISPHERES. [Boon in. 



volition and intelligence appear to be largely, if not entirely, lost, 

 the body is still capable of executing all the ordinary movements 

 which the animal in its natural life is wont to perform, in spite of 

 these movements necessitating the cooperation of various afferent 

 impulses ; and that therefore the nervous machinery for the 

 execution of these movements lies in some part of the brain 

 other than the cerebral hemispheres. We have reasons for 

 thinking that it is situated in the structures forming the middle 

 and hind brain ; as we shall see, interference with these parts 

 produces at once remarkable disorders of movement. 



