118 



ANATOMY 



shortly after birth in the cervical region of the spinal cord. 

 Myelin sheaths appear next in the cerebellum and finally in the 

 cerebrum at about 11 days. His results are given in tabular 

 form in table 79 a. It may be noted that the beginnings of 

 myelination in the cerebrum as determined histologically, coin- 

 cide with the beginning of the rapid increase in solids deter- 

 mined in other ways. 



TABLE 79A 

 Order of myelination in the nervous system of the rat Watson ('03) 



Spinal cord 



Cerebellum 



