FIG. 155. The outline of the brain of an orang-outang. Adopted from Gegenbauer 

 and Vogt and Gratiolet. Front portion, F to O, cerebellum; C, cerebrum; M, medulla 

 and spinal cord; F, the frontal lobe; P, the parietal lobe; O, the occipital lobe; T, the 

 temporal lobe; R, the fissure of Rolando; S, the fissure of Silvius. 



C 



FIG. 156. Brain of Hottentot woman. From Mill's "Text-Book of Animal Physi- 

 ology;" Copyright D. Appleton & Co. Lettering as in Fig. 155. 



