MENINGITIS. 



Sylvian 



prolongation 



of the 



cisterna 



basalis. 



Cistsma 

 basalis. - 



Cisterna 

 pontis. 



- _ Olfactory lobes. 



Optic nerve. 



Internal carotid 



artery. 



. Thud nerve. 



- Fourth nerve. 



- - Fifth nerve. 



Sixth nerve. 



Seventh and 

 eighth nerves. 



Ninth, tenth, 

 and eleventh 

 nerves. 

 Twelfth nerve. 



FIG. 9. Suppurative meningitis, showing the outlines of the infected arachnoid cisterns 

 and the positions in which the cranial nerve trunks appear on the surface of the 

 arachnoid mater. 



[To face page 159. 



