308 C. JUDSON HERRICK 



Fig. 5 Through the commissura tecti of the diencephalon and the caudal 

 part of the chiasma ridge immediately in front of the partial decussation of the 

 tractus pallii (civ, 745). 



Fig. 6 Through the extreme caudal end of the thalamus (civ, 757). 



Fig. 7 Through the rostral end of the mesencephalon at the level of the pos- 

 terior commissure (civ, 772). 



Fig. 8 Through the nucleus of the commissura posterior (civ, 790). 



