150 



SUTHERLAND SIMPSON 



posterior commissure and the apex directed backward. As com- 

 pared with that of the first cervical segment the area is somewhat 

 diminished and the degeneration is less dens; from this it would 

 seem that a considerable number of fibers have already disap- 

 peared from the tract. 



Fig. 10 Transverse section, medulla oblongata near lower limit of pyramidal 

 decussation. X 12. 



Fig. 11 Transverse section, near junction of medulla oblongata and spinal 

 cord. X 12. 



Fig. 12 Transverse section, first cervical segment of spinal cord. X 12. 



Fig. 13 Transverse section, second cervical segment. X 12. 



Fig. 14 Transverse section, fourth cervical segment. X 12. 



