26 Dynamic Evolution 



physicists applied themselves earnestly to dis- 

 covering the cause of this phenomenon, with 

 the result that they quickly learned the 

 source of that energy. 



Any animal which has and maintains with- 

 in itself an amount of energy much in excess 

 of that which exists in other animals of the 

 same class is just as remarkable as radium, 

 and calls just as loudly for an explanation of 

 the source of his energy. The fact that such 

 cases are of frequent occurrence should not 

 blind us to the fact that science has some- 

 thing of importance to investigate. What- 

 ever may be the answer, it should not deny 

 the uniformity of nature's laws. Sound 

 science demands that the first efforts at 

 an explanation should be along the lines of 

 previously established facts and principles. 

 If these do not suffice for an explanation, 

 then we may try other explanations, but a 

 mere denial of their sufficiency will not do. 

 In the absence of a showing to the contrary, 

 it is to be presumed that the facts and princi- 

 ples of nature which are established in one 



