284 COSMIC PHILOSOIHY. [PT. n 



In the following chapter we shall have frequent occasion 

 to refer to this circumstance of heterogeneity of the social 

 environment as manifested psychologically, in its effects 

 upon the intellectual mobility of men regarded as indi 

 viduals. To pursue the problem of progressiveness into this 

 psychological region is the way in which to obtain a basis 

 for the explanation of the progress from Brute to Man ; and 

 to this crowning inquiry we must now address ourselves 



