XLIII.] CLASSIFICATION OF THE SCIENCES. 207 



physiology. I have defined physiology as the science of 

 vital functions. But the conscious or mental functions 

 are so different from the unconscious or bodily ones, that 

 it is convenient, and indeed necessary, to treat of the 

 former apart ; or, in other words, to treat psychology as 

 a distinct science. 



The second group of the sciences that involve life has Psycho- 

 for subiect-matter the results of the activity of the mind of „ , 



•' '' Second 



man in language, art, and society ; and the aesthetic, moral, group : 

 and economical laws under which that activity is neces- 

 sarily carried on. This group of sciences is much less 

 advanced than the mathematical, physical, and mental not yet 

 sciences, and has not yet been systematized.^ feed.™^' 



In the foregoing brief review I have not aimed at any- 

 thing more than an enumeration of the sciences in their 

 order, with a statement of the subject-matter of each. It 

 is now time to state the same in tabular form. 



1 See the preceding chapter. 



