1899.] 



BRAIN OF THE GOEILLA. 



71 



shows from his tables that the position of this fissure iu the 

 Chiaipanzee and the Orang is a little further behind the middle of 

 the cerebrum than is the case \\'ith Man, but that the human 

 fcBtus roughly corresponds in these measurements with the adult 

 anthropoid. On the other hand, Benham finds that the fissure of 

 Eolando in the Chimpanzee " Sally" is in front of the middle line. 

 It cannot be said, therefore, that the greater length of the fx*ontal 

 lobe is a character of the Anthropoid Apes as contrasted with 

 Man. 



Fiff. 5. 



Brain of Gorilla. 

 Letters as in fig. 1. 



One cannot be convinced in spirit-preserved brains that the shrink- 

 age has been uniform. It is doubtful, therefore, how far accurate 

 measurements are of use. But I may observe that in the best- 

 preserved brain at my disposal (fig. 6, p. 72), and in another not 

 quite so good, this fissure was at its posterior end (on the right side ; 

 on the left the fissure was a little longer) exactly in the middle of 



