mi: t rui:r.r.i.i.rM. 



1587 



posterior vermiform process ; an inferior face, studde 1 in s.>mo points with 

 small vascular loops ; a base fixed to tho vermis, near the free extremity of that 

 prominence, and to its lateral parts; two lateral borders, attached to tho 

 corpora iv>t:t'<>rinia on each side of the calamus scriptorius ; and a summit 

 corresponding to the receding angle of tho excavation. This lamina is, 

 doubtless. Hi ithing more than a septum formed by the external pia mater, 

 and on which is extended the internal membrane that covers the walls of 

 rebellar ventricle. Otherwise, it is in direct continuity, towards its base, 

 with an evident dependency of the pia mater the plexus cJioroides. 1 



l.ntt'1-al labeg (Fig. 321, 3, 3). These are shaped like two irregular 

 segments of a sphere. Their sin face, lis-nn .1 and lobulated in every direction, 



..thin},' inter, stin^' (\trrnally, suj.eriorly, "rly. It is by 



1 Tiiis srptimi i- r'ii.-,nit-<l in tli- rudiniciitary -tiitf in Mnn, \>\ tli. ,//. 



