50 Dynamic Evolution 



mals which have worked hard and long are 

 more likely to have their accumulations of 

 energy persist through two or more genera- 

 tions than younger animals. In other words, 

 when animals are selected because of their 

 inherited energy as it becomes apparent in 

 their power to "breed on," the elimination 

 should be of the progeny of young sires and 

 the preservation of the progeny of old sires. 

 By experiments and tests, formulas have 

 been constructed for calculating the concen- 

 tration and dissipation of heat and electrici- 

 ty. Observation shows that animal energy 

 behaves in concentration and dissipation in 

 a similar manner, if not in the same way, 

 that heat energy and electrical energy behave. 

 They are different forms of the same thing, 

 and the uniformity of nature's laws requires 

 that they act in the same way except inas- 

 much as the difference in forms may involve 

 differences in the applications of the actions. 

 It is highly probable that after proper tests 

 and experiments have been made formulas 

 will be constructed for animal energy which 



