Fig. 2. View of ventral surface of brain of ferret. Note the dark damaged area posterior 

 to the optic chiasma and extending forward over the left optic tract. (From Donovan and 



\an der Werff ten Bosch, 24.) 



Fig. 3. Transverse section through the anterior hypothalamus of the brain shown in Fig. 2, 



showing the region in the midline destroyed by the lesion. (Loyez stain, 25 fi.) From 



Donovan and van der Werff ten Bosch, 24.) 



