200 Journal of Comparative Neurology. 



we still require from the standpoint of physiology some com- 

 mon ground for interaction, such as would be furnished by the 

 nerve-felt of the cortex. See in this connection the discussion 

 of the cortex in the article upon the "Anatomy of the Brain 

 of the Opossum/' supra.(') 



I Since the above was written we have received the " Report of Six Lectures on 

 Cerebral Localization," by Dr. Henry H. Donaldson, American Journal of Psychology, 

 IV, I, p. 113. 



