Fig. 36 Transverse section a short distance rostrad of the IX roots, illustrating 

 a single neurone of the area acustico-lateralis whose dendrites reach specific 

 regions of the stratum album containing special fascicles of root fibers. Golgi 

 method. X 100. 



Fig. 37 Transverse section between the IX and X roots, illustrating ventrally 

 two neurones of the motor tegmentum and farther laterally two which probably 

 belong to the nucleus ambiguus. The latter appear to effect their chief connec- 

 tions with the secondary visceral tract {tr.v.a.), and also with the spinal V root and 

 the tegmentum farther ventrally. Golgi method. X 100. 



415 



