Energies of the Organic World 95 



gradually in the late middle or early last archfean epoch, and 

 was continued as nuclear material through the higher Acaryota 

 and on through the entire range of the Caryota. The cogitic 

 probably originated feebly toward the close of the archsean 

 epoch amid the liigher coelenterates, the simpler echinoid, and 

 the simpler rotiferan types. It has since gone on elaborating 

 increasingly complex linkings or combinations of its cell-sub- 

 stance up to the thousands of ganglionic cells of the human 

 cerebrum or cerebellum. 



Additional evidence for and against the present view \\'ill 

 be presented in succeeding chapters, but we would again assert 

 that the recognition in the higher animals of three distinct 

 energies that are ahke graded and inter-related, that can 

 gradually be transformed into each other as with the "inor- 

 ganic" energies, that in ascending grade of energizing com- 

 plexity are correlated mth a like advance in molecular morphol- 

 ogy, and that may yet under varying life conditions show 

 surprisingly sharp separation in their phenomena, is ahke 

 warranted and promises to unravel for us many intricate life 

 problems. 



Naturally, if it can be demonstrated that the amount of 

 any of the inorganic energies needed theoretically for the 

 synthesis of the albumens or nucleo-proteids, not to say neuratin 

 or Nissl substance, can be expended in upbuilding the enor- 

 mously complex molecules of these substances, and yet remain 

 there in balanced state as intra-molecular energy of an electric, 

 a chemic, or a thermic kind, mthout causing constant disrup- 

 tion or burning of the tissue aggregate, then the need for any 

 more perfect or concentrated form of energy is superfluous. 

 Absolutely no evidence of such a possibihty is as yet forth- 

 coming. 



So for shortness and exactness in our future descriptions 

 we mil speak of the following varieties of energy, in what we 

 regard as their progressive scale of relationship and conden- 

 sation. 



