152 SCIENCE AND PHILOSOPHY OF THE ORGANISM 



every elemental natural factor is legitimate by being 

 necessary. Whenever analysis shows that there is something 

 hitherto unrecognised in nature that is not to be expressed 

 in terms of natural factors already known to science, then 

 and then only " economy ' would allow us to create a 

 new elementally, and would only want to find out whether 

 this new factor is to be regarded as a " constant," or a 

 " force," or a sort of " energy," or what not. To the 

 epistemological " economist," whose summum jus is to be 

 " practical," science is mere experience, and for him there 

 is no such thing as real philosophy nothing higher than 

 science. Of course, any new factors, created in this style, 

 would by no means " explain '" but merely " describe ' in a 

 shortened way : but the economists say there cannot be any- 

 thing except description in this sense. 



We are by no means partisans of modern empiristic 

 " economism," and therefore the question as to the 

 epistemological justification of our newly created natural 

 factor is to us an important problem. 



We shall begin this justification forthwith. 



