43 2 Journal of Comparative Neurology and Psychology. 



tions suggest that the neurites of these cells end in relation with 

 cells of the nucleus ambiguus. Other preparations show their 

 neurites extending out into the substantia reticularis (right side 

 of Fig. 34), and still others show their neurites passing into the 

 decussating tract for the ventral commissure, probably for the 



/^ig. j^. Transection through the vagal lobes of A»ieinriis inelas. GoLGl 

 method. X 50. 



The figure shows on the left an intrinsic neurone whose neurite (of type II) 

 arborizes in the nucleus intermedius. One neurone of the latter nucleus is im- 

 pregnated, though only the proximal part of the neurite is shown. On the oppo- 

 site side similar neurites are seen to enter the substantia reticularis grisea and the 

 tract for the ventral commissure. 



substantia reticularis of the opposite side. Completely impreg- 

 nated neurones of the latter type are figured by van Gehuch- 

 TEN ('94, Plate I, Fig. 13) for the trout. Some of these neu- 

 rites reach the level of the commissura infima Halleri and arbor- 

 ize among the cells of the commissural nucleus of Cajal. In 



