THE NERVOUS SYSTEM 



163 



dently, therefore, some other part of the brain can com- 

 pensate for its absence. 



The manner in which the cerebellum acts has been chiefly 

 elucidated by removing parts of the organ and keeping the 



FIG. 88. Connections of the Cerebellum with the Cerebro-spinal Axis (for 

 explanation, see text). 



animals under observation for prolonged periods. If one 

 side of the cerebellum is removed the first symptoms are 

 (1) a tonic contraction of the muscles of the limbs of the 

 same side by which the fore limbs may be powerfully ex- 



