90 



CHARLES BROOKOVER 



more than once found fibers accompanying the blood vessels that 

 run into the adipose tissue of the cranial cavity rostrad of the 

 olfactory bulbs. 



In Cajal preparations of adults I was able to trace a bundle of 

 fibers, not exceeding fifteen in number, from the olfactory bulbs 

 posteriorly to the region of the optic chiasm, in the same rela- 

 tion to the internal carotid artery as shown in the Golgi prepara- 

 tions just mentioned (see also fig. 32). In one Cajal prepara- 

 tion the fibers seemed to diminish in numbers posteriorly, but 

 I was not able to connect this bundle with the nervus terminalis 

 on account of a defect in the preparation, as I judged, although I 

 succeeded in tracing the bundle within less than a millimeter of 



ol^cto™ Wlb 



Fig. 23. Golgi preparation from young Amia as for previous figure. Shows 

 what was thought to be a nerve cell beneath the olfactory bulb, the most posterior 

 of any cells in the meninges attributable to the nervus terminalis. X 2*25. 



the bundle of the olfactory nerve containing nervus terminalis 

 fibers. 



What was thought to be a nerve cell with its processes branching 

 in the neighborhood of the internal carotid artery beneath the 

 olfactory bulbs (fig. 23) was found as far as posteriorly as the 

 bit of artery shown in fig. 19. This is the farthest caudad that 

 a cell separated from the main branch of the nervus terminalis 

 has been found within the cranial cavity, except the groups of 

 nerve cells to be described later. The position of the nerve cell 

 in this instance (fig. 23) appears quite similar to that of the 



