130 The Corpus Ponto-Bulbare 
In conclusion, I wish to acknowledge my indebtedness to Dr. George 
L. Streeter, at whose suggestion and under whose supervision the study 
of this ganglion mass was carried on. I aiso desire to express my thanks 
to Prof. Max Brédel for his assistance in preparing Figs. 2 and 12. 
ABBREVIATIONS USED IN FIGS. 3-12. 
Brach. pont—= Brachium pontis. 
Corp. Rest. = Corpus restiforme. 
Corp. Trap.= Corpus trapezoideum. 
Fibr. Cereb. Oliv.= Fibre cerebello-olivares. 
N. Coch.=Nervus cochlearis. 
N. Vest.= Nervus vestibularis. 
N. Glossoph.— Nervus glossopharyngeus. 
Nu. Coch. Dors= Nucleus cochlearis dorsalis. 
Nu. Coch. Vent.= Nucleus cochlearis ventralis. 
EXPLANATION OF FIGS. 3-11. 
Fic. 3. Transverse section through the pons immediately in front of the 
emerging facial nerve. X 4.5. 
Fie. 4. Transverse section just caudad to the preceding, through the 
nervus intermedius, showing the fibers of the corpus ponto-bulbare in cross 
section. X 4.5. 
Fic. 5. Transverse section through the medulla at the border of the pons. 
xX 4.5. 
Fic. 6. Transverse section through the cephalic end of the olive. > 4.5. 
Fic. 7. Transverse section through the caudal- border of the dorsal coch- 
lear nucleus. X 4.5. 
Fic. 8. Transverse section through the cephalic border of the corpus 
ponto-bulbare where it encircles the restiform body. X 4.5. 
Fic. 9. Transverse section immediately caudad to the preceding, showing 
the longitudinally cut fiber strands turning around the restiform body. ™X 4.5. 
Fic. 10. Transverse section through the thickest part of the projecting 
caudal tip of the corpus ponto-bulbare. X 4.5. 
Fic. 11. Transverse section through the middle of the olive, showing the 
caudal end of the corpus ponto-bulbare. X 4.5. 
