LIST OF ILLUSTRATIONS xxvif 



Figure Paci- 



46o-4~o. Cross scc-tioii at le\cl ol pyramiiial dccussatioti in tlic comparative primate 



series ggf,^ gg-7 



471-481. Cross section at the level of the caudal extremity of inferior oli\e in the com- 

 parative primate series 1000, 1001 



482-492. Cross section at the level of the middle of the inferior oli\e in the com- 

 parative primate series 1004, 1005 



493. Graphs constructed on the basis of the planimetric indices 1009 



494-504. Cross section at the le\-el of the \ estibular nuclei in the comparati\-e primate 



series 1012, 1013 



505-515. Cross section at the le\el of the emergence of the trochlear ner\e in the com- 

 parative primate series 1016, loi 7 



516. Graph based on planimetric indices of the pontile nuclei 1018 



517-527. Cross section at the level of the inferior colliculus in the comparati\e primate 



series 1022, 1023 



528-538. Cross section at the le\el of the superior colliculus in the comparati\e pri- 

 mate series 1026, 1027 



539. Graph based on planimetric indices of cerebral peduncle 1028 



