430 'Journal of Comparative Neurology and Psychology. 



Fig. io. Section through the brain of Conger .6 mm. farther caudad, passing through the median 

 funicular nucleus at its widest part and including the lowest spinal vestiges of the somatic and visceral 

 commissural nuclei and the nucleus ambiguus. The funicular nucleus includes also the spinal V nucleus 

 and passes caudad directly into the dorsal cornu. 



Figs, ii and 12. Transverse sections through the commissural nuclei of Amia calva L. Drawn 

 from sections of a young fish about 7 cm. long stained in iron haematoxyiin, kindly loaned to me by 

 Professor Charles Brookover. 



Fig. II. Section through the visceral commissural nucleus at the level of the most caudal rootlet 

 of the vagus nerve. The area marked somatic sensory feld contains the extreme cephalic part of the 

 funicular nucleus and the jasc. dorso-lat. contains the spinal V root in addition to other elements. X 55- 



Fig. 12. Section through the somatic commissural nucleus at the level of the first dorsal spinal 

 root. The visceral nucleus has entirely dis.appeared at this level. X55. 



