XII.] 



THE CORPORA 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. 



Irm rir3 



Tbansvdesb Section through the Bbain ow a Rabbit of 

 Five Centimetres. (After Mihalkovios.) 



The section passes througli nearly the posterior border of the 

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



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

 ammonis (hippocampus major) ; cms. superior commissure 

 of the cornua ammonis ; spt. septum lucidum ; ji^.i; 2. anterior 

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

 terminaUs ; str. corpus striatum ; Itf. nucleus lenticularis 

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

 ventricle ; ipl. sUt between cerebral hemispheres. 



