144 



Neurological Technique 



Lobus olfactorius ' 



Chiasma opticum 



Infundibulum 



Fig. 4. 



Median section through the adult human brain, showing the various regions or 

 derivatives in the adult form as compared with the embryonic form shown in fig. 3. 

 The reference numbers are to be interpreted in the same way as for fig. 3. (After 

 His.) 



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