FUNCTION AND ENVIRONMENT 207 



of the philosopher into the biologist, and 

 when we recall the enthusiasm with which 

 the late Prof. William James proclaimed him- 

 self as the disciple and exponent of Bergson, 

 we see how fruitful may be this re-opening 

 alliance of the abstract with the concrete 

 thinker. Again, as in Spencer's day, our 

 biology and our psychology have to be 

 correlated and unified anew, and all towards 

 the philosophy of evolution. Still, with all 

 respect to the philosophers, who have taken 

 this great step towards becoming naturalists, 

 we cannot but feel that the next step in pro- 

 gress must depend upon how far we naturalists 

 can in our turn become something of psycho- 

 logists and even philosophers. 



It is a matter of common sense and expe- 

 rience, which we are all verifying any and 

 every day for ourselves, that the psycho- 

 logically-minded person can and does see 

 farther into life, and sees more aspects of it, 

 than the most skilled mechanic, be he the in- 

 ventor of machines or the discoverer in physics. 

 After all, the biologist cannot be content until 

 he becomes something more than a physicist 

 and chemist, an anatomist, systematist and 

 so on : beyond its structures and reactions, 

 life has an aspect of behaviour, and that is, 

 after all, the main one. As he grasps this, he 



