REGENERATION AND DEATH 187 



mate destination. When the child is born it is incapable 

 of movement. There is scarcely more than the power 

 of twitching about in a disorderly fashion. Its muscles 

 can contract, to be sure, but any sort of motion that 

 implies a harmonious working together of various 

 muscles, the baby at birth is quite incapable of. 



mol. 



FIG. 63. SECTION OF THE CEREBELLUM OF A CHILD OF THIRTEEN DAYS. 

 Only the nuclei, which are represented as black dots, are drawn, o. /., outer 

 layer, which disappears during childhood; mol, molecular layer; gr, granular 

 layer. X 120 diams. 



This phenomenon is doubtless due to the fact that 

 the cerebellum, the small brain, is as yet imperfectly 

 developed. If we examine the brain of the child at 

 birth, we find at the edge of the cerebellum a line along 

 which the production of new cells is going on. These 

 new cells migrate over the surface of the cerebellum 



