84 K. S. LASHLEY 



2. Complete destruction of the area critical for pattern 

 vision does not entail a severe grade of amnesia. 



3. The degree of amnesia is proportional to the total extent 

 of the lesions beyond the critical area. 



4. Evidence is advanced to show that this relationship can- 

 not be ascribed to the extent of scotoma. 



LITERATUEE CITED 



Lashlet, K. S. 1926 Studies of cerebral function in learning. VII. The 

 relation between cerebral maas, learning, and retention. J. Comp. 

 Neur., vol. 41, pp. 1-58. 



1931 The mechanism of vision. IV. The cerebral areas necessary 



for pattern vision in the rat. J. Comp, Neur., vol. 53, pp. 419-478. 



