i MIND AS A FACTOR IN EVOLUTION n 



which we call mechanical, and the more so in proportion / 

 as Mind develops. Thus if our study of orthogenic 

 evolution is an inquiry into the growth of Mind, it will 

 also follow the successive stages by which the life of 

 animals and men become more completely organised, and 

 if a completer organisation may fairly be called a higher 

 organisation, that is some justification for our provisional 

 application of the term to the work of Mind. Our 

 subject then is the development of Mind as seen in its 

 functions, and this will involve a review of the principal 

 types of correlation, whether attributable to Mind or 

 to any other factor, that are discoverable in the world 

 of life. 



