124 The Corpus Ponto-Bulbare 
view of the fourth ventricle. It may be seen turning around the resti- 
form body caudal to the line of attachment of the tela choroidea along 
the lateral recess and projecting as a lamella into the roof of the fourth 
ventricle. 
There are many excellent photogravures of this region in Retzius,” in 
which the relations of the ponto-bulbar body to the restiform body and 
the fourth ventricle are brought out. In his Plate XXXV, Fig. 9 shows 
me Nu.coch.dors. 
a Taenia 
me Corpus ponto- 
P bulbare 
Fic. 2. Drawing of an average human medulla giving the usual appearance 
of the corpus ponto-bulbare caudal to the dorsal cochlear nucleus. X 2. 
> on the right side ex- 
a doubled ridge, above described as “ finger-like,’ 
tending antero-lateral from the base of the detached tenia (labeled “t”). 
A similar though not so well marked arrangement is shown in Plate 
XXXVI, Fig. 2. Figure 4 of Plate XX XVII gives the best illustration 
of the whole dorsal extent of the ponto-bulbar body because the pia has 
been completely removed from the specimen. It may be recognized as 
the first transversely placed ridge which encircles the restiform body in 
front of the clava. The way in which it turns around the restiform body 
“WoG) Cit: 
