NERVUS TERMINALIS: MAMMALS 



47 



substance in this region. In the material examined, only one 

 relatively large strand (fig. 32, c) was seen to enter the brain. 

 This compared in size with the strands which enter the mule's 

 brain (figs. 40, 41, 42). 



Although the peripheral relations in the beef could not be 

 determined in the available adult material, dissection of a num- 

 ber of ox fetuses of 110 mm. to 140 mm. greatest length brought 



Fig. 34 Part of the nasal septum and the cerebral hemisphere of fetal ox of 

 121 mm. greatest length, showing the nervus terminalis, the vomeronasal nerves, 

 and a portion of the vomeronasal organ. This drawing was combined from sev- 

 eral dissections and is to that extent diagrammatic. X 4. 



out the fact that in the beef, as in the other mammals studied, 

 the terminalis passes through the cribriform plate in company 

 with the vomeronasal nerve, and doubtless spreads out on the 

 septum in the characteristic plexiform manner observed in other 

 mammals. 



As shown in figure 34, which represents the relations in a 

 fetus of 121 mm. greatest length, the main nerve bundle divides 



