86 'Journal of Comparative Neurology and Psychology. 



Fig. 7. Transection a short distance farther caudad. The area designated funicular nucleus con- 

 tains in addition to that structure the somatic commissural nucleus and probably also a spinal prolonga- 

 tion of the visceral sensory column, though the latter cannot be separately distinguished. The spinal 

 V nucleus is so intimately related to the same area that no line of demarcation can be found between 

 them. The whole area seems to function as a unit. The lateral funicular nucleus is not separately 

 developed. The most cephalic ventral root fibers of the first spinal nerve appear in this section. 



X35- 



Fig. 8. Transection farther caudad which passes through a dorsal and a ventral rootlet of the first 

 spinal nerve. The cornu dorsalis is considerably larger than in the remainder of the spinal cord and 

 still includes a vestige of the funicular nucleus complex and commissura infima. X 35. 



