98 Journal of Comparative Neurology, 



explanation of plate v. 



Fig. I. Dorsal aspect of brain of Didelphys virginiana; i, point where 

 fingers of left hand were extended and divaricated ; 2, left leg moved cephalo- 

 dorsad; 3, fingers of left manus extended and divaricated ; 4, extension of right 

 manus ; 5, same as i. 



Fig. 2. Dorsal aspect of brain of Procyon lotor. Extirpated area of right 

 hemisphere shaded. See text. The numbers on the figure not referred to in 

 the text indicate places the stimulation of which was followed by no definite 

 reaction. 



Fig. 3. Dorsal aspect of brain of half-grown Felis domestica ; I, flexure of 

 pes and contraction of shoulder muscles ; 2, extension of left manus and for- 

 ward motion of arm ; 3, inward rotation of left manus ; 4, forward motion of 

 left hind leg ; 5, flexure of toes of right pes. 



Fig. 4. Brain of Fiber zibethecus \ b, areas extirpated. See text. 



Fig. 5. Localization in Opossum brain according to Ziehen. H, hind leg; 

 F, fore leg ; Mf, mouth-facial region. 



