7 o8 



MAMMALIA. 



and there is a sympathetic system as in most other 

 Vertebrates. 



The cerebral hemispheres of the rabbit are very slightly convoluted, 

 and they leave the cerebellum quite uncovered. They are connected 



FIG. 



387. Dorsal view 

 rabbit's brain. 



FlG. 388. Under surface of rab- 

 bit's brain. After Krause. 



off. I., Olfactory lobes ; <?./., olfactory tract; 

 _/!/., frontal lobe of cerebral hemisphere ; 

 ch., optic chiasma ; I.e., infundibulum ; 

 c.m.y corpus mammillare ; 3, root of 

 oculomotor; 4, root of pathetic; 5, 

 root of trigeminal ; 6, root of abducens ; 

 7-8, roots of facial and auditory; /Y., 

 flocculus of cerebellum ; 9, root of glosso- 

 pharyngeal ; 10, roots of vagus ; //., i2th, 

 or hypoglossal ; /.z>., pons Varolii. 



transversely by a broad bridge the corpus callosum, and beneath this 

 there is a longitudinal band of fibres the fornix. The corpus callosum 

 is readily disclosed by gently separating the hemispheres. The outer 

 wall and floor of the anterior part of the cavity or ventricle of each 



olf.l., Olfactory lobes; c.h.^ cere- 

 bral hemispheres; o.l., optic 

 lobes (corpora quadrigemina) ; 

 cb.) median part of cerebellum ; 

 Fl. t flocculus of cerebellum ; 

 10, root of the tenth or vagus 

 nerve ; s.c., spinal cord. 



