CHAPTEE XXXIII. 



MENTAL DEVELOPMENT. 



T)EFOPiE endeavouring to trace the subject of mental 

 ■^ development in detail, it will be well to recapitulate, 

 so as to bring into one brief view the various statements 

 of the last few chapters concerning the elementary prin- 

 ciples of mind. 



Mind is developed out of sensation, as out of a germ. 

 It is the purpose of this chapter to trace the process of 

 development. 



But does sensation itself belong to mind ? I state this Is sensa- 

 qiiestion, not as one which from my point of view needs Cental ? 

 any answer, but as one which may naturally arise and 

 embarrass the reader's thoughts ; and I reply to it, that 

 the question is a purely verbal one. I have confessed The 

 my inability to frame a satisfactory definition of mind, i^s^onlv'^ 

 But, as a matter of fact, mind begins with sensation. verbaL 

 Consciousness belongs to mind ; there are feelings of Mind 

 sensation and feelings of consciousness : I have stated my Jjfh"^ 

 reasons for believing that the seat of both kinds of feelings seusation. 

 is in the sensory ganglia, though produced by the action Feelings 

 of different sets of nerves ; ^ and feelings of sensation and tion and 

 of consciousness, especially disagreeable ones, often act on of con- 



soioiisiiGss 



the organs of unconscious life in the same way, as for ' 



instance in the cases of nausea and of palpitation of the 

 heart, which may be produced either by bodily or by 

 mental feelings. 



1 See the Chapter on the Physiology of Mind (Chapter XXIX.). 

 VOL. IL F 



