187 



branches. The visceral sensory fibers of the N. vagus, as already shown, 

 run into the area lettered I. v. in this figure. 



The fact that the visceral sensory column seems to be placed 

 dorsal to the somatic sensory column in this region is due to the hyper- 

 trophy of the caudal part of the "lobus vagi" and the nucleus corn- 



Fig. 4. A transverse section through the right "lobus vagi" at the level of the 

 N. glossopharyngeus. Two characteristic neurones of the visceral sensory column. Many 

 dendritic branches, especially of the outer cell, are not drawn. Magn. about 400 diam. 



missuralis. This has resulted in the visceral sensory column rising up 

 medial to the somatic sensory column, so that the latter is pushed 

 out laterally. The same relation exists between the "lobus vagi" and 

 acusticum in certain bony fishes and between the "lobus facialis" and 



