XII.] 



THE CORFOBA STRIATA. 



379 



and the boundary between them becomes somewhat 

 obscure, so that the sharp distinction which exists 

 in the embryo between the thalamencephalon and 

 cerebral hemispheres becomes lost. 



- vtrf 



frm "Ira 



Transverse Section through the Brain of a Rabbit or 

 Five Centimetres. (After Mihalkovics.) 



The section passes through nearly the posterior border of the 

 septum lucidum, immediately in front of the foramen of Monro. 



hms. cerebral hemispheres ; ecd. corpus callosum ; amm. cornu 

 ammonis (hippocampus major) ; cms. superior commissure 

 of the eornua ammonis ; apt. septum lucidum -jfrxi. anterior 

 pillars of the fornix ; cma. anterior commissure ; trm. lamina 

 terminalis ; sir. corpus striatum ; Itf. nucleus lenticularis 

 of corpus striatum ; vtr 1. lateral ventricle ; vtr 3. third 

 ventricle ; ipl. slit between cerebral hemispheres. 



