Chap. X.] 



THE SCOPE OF MTND. 



155 



indicates the principal kinds of data which require to be 

 combined, and more or less fused, in order to give birth 

 to a legitimate Psychology or true science of Mind, 



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These three departments supply data almost equally 

 important. To neglect the facts supplied by Neurology 

 would be about as unreasonable as to dismiss the legitimate 

 study of Subjective Psychology, and certainly is on no 

 grounds to ba defended by those who do not refuse to 

 include the study of Objective Psychology — and are thus 

 willing to take account of the data obtainable as to the 

 conscious states of animals and of human beings other 

 than themselves. For, if a departure is once made from 

 the sphere of the subjective, the data of Neurology must 

 be admitted to constitute as important a division of the 

 science of Mind as those derived from Objective Psycho- 

 logy — from which they differ more in degree than in 

 kind. 



