THE BBAIN. 



513 



FIG. 219. 



FIG. 220. 



FIG. 221. 



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

 (From Kolliker.) Natural 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. c.st, corpus striatum. /./', hippocampus 

 major, h, cerebral hemisphere, in, mid-brain, mo, medulla oblongata. p, pons Varolii. 

 tfto, 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. 

 c, cerebellum, h, cerebral hemisphere, mo, medulla oblongata. v, mid-brain. 



FIG. 223. The brain of a Human Fostus six months old, from the right side. 

 (From Kolliker.) Natural size. 



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

 o, olivary body, ol, olfactory lobe, p, pous Varolii. 



i. I- 2 



