404 MABEL BISHOP 



The maxillary division arises from the middle of the ventral 

 surface of the ganglion and follows a normal distribution. Fig- 

 ures 16 and 17 show its course through the developing spheno- 

 palatine ganglion (left) and on into the mucous membrane of 

 the nose by way of its nasopalatine branches. The continuation 



Fig. 17 Section through the cartilages of the external auditory meatuses of 

 Ihe outer (normal) sides of the embryo, the two tongues, and the median Meckel's 

 cartilages at their fused otic ends. S. 272. 



Fig. 18 Section through the hypoglossal foramina, the external auditory 

 meatuses of the outer (normal) sides of the embryo, the tongues, and the con- 

 joined cartilages of the external auditory meatuses of the median region. S. 286. 



Fig. 19 Section through the roots of the first spinal nerves, the epiglottis, 

 and the median (conjoined) external auditory meatus. S. 3P2. 



of the main trunk and the superior labial branches are also seen 

 in figures 17, 18, 19. 



As already stated, the motor root of the trigeminus is merged 

 with the mandibular, nerve, the sensory portion of which arises 

 from the most ventral region of the gasserian ganglion. The 

 common trunk courses rostrally, and soon divides into its terminal 

 branches, of which only the lingual concerns the present investi- 



