224 



THE GROWTH OF THE BRAIN. 



mental history of this arrangement has never been 

 followed, and in the light of our present knowledge is to 

 be looked upon as exceptional. 



Granting the lack of anatomical continuity, the ques- 



FlG. 43. Showing at the lower edge of the figure a series of 

 basket-like terminations of neurons which surround the bodies 

 of the great cells of Purkinje in the cortex of the cerebellum. 

 Ram6n y Cajal.) Z, cell-body ; TV, neurons ; B, basket-like 

 terminations arising from cell Z, and enclosing the cells of 

 Purkinje. 



tion arises how the physiological reactions of the nervous 

 system can be explained without it. By way of illustra- 

 tion, it may be urged that there is apparently no diffi- 

 culty in the passage of the nervous impulse from the 



