837 



has been influenced by tlie virus (Fig. XIII). A nioie distal section 

 of N facialis and its brancii the chorda tynipani proves, that both 

 these nerves have degenerated, so that the second nervous path too, 

 connecting the braiiisleni with the salivary ffland prove to be degene- 

 rated. As to the cellular elements c-ouiiecled with both these pathes 

 we found in the ganglion (Tiissei'i as well as in the ganglion oticuni 

 serious alterations of nerveoells. We did iu)t succeed in getting suf- 

 ficient slices of the ganglion geniculi. 



Fig. XI. 

 Degenerated lingualis fibres 

 passing the ganglion oticum. 



Fig. XII. 



Nervus lingualis entering the glandula 



sublingualis. 



On the other hand the N abducens, the more distal part of the 

 N. mandibularis, N. ophtalmicus. and N. maxillaris proved to contain 

 for the greater part normal fibres as well as nerves more proximally 

 entering or leaving the brain e.g. the N. opticus and N. oculomo- 

 torius had no changes at all. 



Resuming we found the brainstem seriously changed, the altera- 

 tions of the uervecells with their .W_(/r/bodies, the destroyed myelin- 

 sheaths especially in the peripheric lateral parts of the stem, proved 

 that this part of the central nervous system had fjeeii strongly 

 influenced by the noxious virus. 



Pursuing the different roots leaving the brainstem we found both 

 roots of' the N. trigeminus degenerated especially the portio minor. 

 The facialis roots also showed some degenerated fibres, but in a 

 far less degree than the roots of the N. trigeminus. Of the branches 

 of the ganglion Gdsserl, the N. lingualis was the most destroyed nerve. 



