440 DISEASES OF THE NERVOUS SYSTEM. 



nuclei and protoplasmic processes, and the cell-body becomes 

 shrunken and finally entirely disappears. The nerve-fibres of 

 the anterior roots show fatty degeneration of the myelin-sheaths 

 and fragmentation of the axis-cylinders (Figs. 210-212). 



FIG. 213. 



Sarcoma of the spinal cord (Bock). 



Of primary tumors the glioma and sarcoma are the types 

 most frequently encountered (Fig. 213). 



