310 C. JUDSON HERRICK 



Fig. 9 Through the tuberculum posterius (civ, 802). 



Fig. 10 Immediately below the attachment of the hypothalamus to the cere- 

 bral peduncle (civ, 819). 



Fig. 11 At the level of the root of the III nerve and fovea isthmi (civ, 833). 



Fig. 12 Through the middle of the tectum mesencephali (civ, 860). 



Fig. 13 Through the lower third of the tectum. The optic part of the tectum 

 (colliculus superior) apparently does not extend farther caudad than this level 

 (civ, 875). 



Fig. 14 Through the nucleus posterior tecti. The auricular lobe of the 

 medulla oblongata appears in the section and the cerebellum lies a short dis- 

 tance farther caudad. The fibers of the brachium conjunctivum {br. coJij.) 

 in this and the preceding sections are mingled with those of the tractus tecto- 

 peduncularis profundus (tr.t.ped.p.) (civ, 890). 



