THE BEAIX. 



515 



Fig. 219. 



Fig. 220. 



Fig. 221. 



Figs. 219-221. — Three views of the brain of a Human Foetus three months old. 

 (From Kolliker.) Xatural size. 



Fig. 219. — From the right side. 



Fig. 220. — From the dorsal surface ; the dorsal parts of the cerebral hemi- 

 spheres and of the mid-brain have been removed to expose the internal 

 cavities. 



Fig. 221. — From the ventral surface. 



c, cerebellum- cm, corpus mammillare. est, corpus striatum. /./', hippocampus 

 major. A, cerebral hemisphere, m, mid-brain, mo, medulla oblongata, p, pons Varolii. 

 tfio, optic thalamus, to, optic tract. 



Fig. 222. 



Fig. 223. 



Fig. 222. — The brain and spinal cord of a Human Foetus four months old, from 

 the dorsal surface. (From Kolliker.) Natural size. 

 Cj oerebeUum. ft, cerebral hemisphere, mo, medulla oblongata, r, mid-brain. 



Fig. 223.— The brain of a Human Foetus six months old, from the right side. 

 (From KoUiker.) Xatural size. 



c, cerebellum. /, lateral lobe or hemisphere of the cerebdlmn. /.s. Sylvian fissure, 

 o, oUvary body, ol, olfactory lobe, p, pons Varolii. 



I. L 2 



