MIDBRAIN AND THALAMUS OF NECTURUS 



333 



sTrmed 



Fig. 45 The pars ventralis thalami of the left side from the next section 

 vent rally of the last. The more rostral of the two neurons whose cell bodies 

 are impregnated is apparently transitional between the pars ventralis and the 

 nucleus of the pars optica. One large dendrite is directed backward into the 

 stratum album of the pars ventralis, and another which passes out of the plane 

 of the section is directed toward the pars optica. This dendrite, or an entirely 

 similar one, is shown in figure 44 at d. The axons here drawn probably all be- 

 long to the tractus thalamo-peduncuJaris system, a few at the rostral end com- 

 ing from the eminentia thalami, then a few from the nucleus of the pars optica, 

 the remainder coming from the pars ventralis. X 74 (cviic, 22). 



