B 



-L.ol 



m 



IX.X.XI 



MeS, 



c 



ZffMff 7F 



Mctl 



Lol. 



D 





Lol 



Cos Co.p ME IV Jill 



<!oL bV 



x 



JnJ 



F]1 , s.sl. Rana esculenta. The brain. A, from above ; B ; from below ; C, from the side ; 

 D in sagittal section. Aq. Sjil. iter or Aqueduct of Sylvius ; Ca. corpus callosmn : ch. opt. 

 optic chiasma; co. a. anterior commissure ; co. p. posterior commissure; co. .. superior com- 

 missure ; F. Mo. foramen of .M.mro ; 7/77, cerebellum ; /////>. pituitary body ; Inf. inf undibulum ; 

 L. ol. olfactory lobe ; MvL spinal cord ; MH, mid-brain ; NH, medulla oblongata ; Th. opt. 

 optic thalamus; Tr. opt. optic tract ; V. Hi. diac<ele ; V. iv. inetaccele ; I 77, cerebral hemi- 

 sphere ; ZH, diencephalon ; JX, cerebral nerves; XII(l), hypoglossal (first spinal ; nerve. 

 From Wiedersheim's Comp >-nt'i <<: Anatomy.) 



