SCOPE AND AIMS 10 



and chemical interpretation of phenomena 

 happening in living matter. We shall see, 

 however, that in the present state of the 

 science there are not a few phenomena which 

 cannot be so explained. Such phenomena 

 are provisionally termed vital. Meantime 

 we may note that as physiological science 

 advances, vital phenomena are more and 

 more regarded as special examples of the 

 operation of chemical and physical laws. 

 Still there are at present, and it is not going 

 too far to assert that there must always be, 

 some phenomena that cannot be so explained. 

 Thus it would appear to be impossible ever to 

 account for feeling, willing, thinking, and other 

 mental (psychical) states or processes by any 

 purely physical or chemical operations. 



