| OCR Text |
Show 1899.] BRAIN OE THE GORILLA. 69 some importance. The Y-shaped fissure was visible on the mesial surface, and between the forks of the Y extended doivn for a short distance from the upper surface of the brain a fissure. The arrangement, in fact, is closely like that figured by Benham in figs. 24 and 29 of his paper. I shall follow him in terming the short middle fissure the lateral parieto-occipital and the Y-shaped Fig. 3. Brain of Gorilla belonging to the University of Oxford. Dorsal view. Op. Operculum. Other letters as in fig. 1. fissure the mesial parieto-occipital. I have used the expression "apparent difference" to distinguish this hemisphere from that in which the sum total of the parieto-occipital fissures was represented by one Y for a good reason. W h e n the furrow of that hemisphere is explored by pushing aside its margin a median |
