com hip. 



Fig. 43 Through the ventral part of the right pars ventralis thalami and 

 immediately dorsally of the crossing of the hippocampal commissure (com.hip.). 

 From the fibers of the latter, which are unimpregnated, delicate fibers (probably 

 collaterals) are stained; these pass backward to arborize among the dendrites 

 of the neurons of the eminentia thalami (em.th., cf. fig. 48). A single neuron 

 from the caudal end of the eminentia thalami is partially impregnated. This 

 neuron is transitional to those of the nucleus of the pars optica thalami {nucp. 

 o.th.). A few fibers of the tractus thalamo-peduncularis dorsalis profundus 

 (tr.th.p.d.p.) from the nucleus of the pars optica thalami are shown, to which 

 are added farther caudad similar fibers of the tractus thalamo-peduncularis 

 ventralis profundus from the pars ventralis thalami. A single ependyma ele- 

 ment {epen.) of the pars ventralis thalami is impregnated. X 74 (cviic, 21). 



331 



