Relation of Higher Animals to Man 569 



iVll of the above shows that morphologico-taxonomic organ- 

 ization and relationship, along one main ascending phylogenetic 

 line, by no means corresponds to, or is an infallible index to, 

 the true morpho-biological, or — if we prefer to so call it — the 

 morpho-physiologic advance. Rather we find that, wherever 

 an animal is brought to or reaches a more and more varied or 

 complex enviromnent, then there pass stimuli to the brain, 

 which there give rise to proenvironal responses, that for the 

 time lead to a "satisfied state," till in turn new environal stimuli 

 are presented. Such energizing stimuli in turn excite the biotic 

 system, the muscular, respiratory, alimentary, osseous, etc., to 

 new growth-change or adaptation. These changes also affect 

 slowly the nerves and brain or cogitic cells, we would consider, 

 so as to cause a gradual readjustment, or increase, or much 

 more slowly a chemical alteration of their substance, all of 

 which are more or less shared by and influence the generative 

 cells, which in turn affect the succeeding organisms hereditarily. 

 Or, to repeat once more our fundamental position: flows of 

 energy, often and steadily repeated from sense-collecting centers, 

 start stereo-energetic stimulation-acts, that inevitably affect 

 the brain cells, and these by expenditure of cogitic energy give 

 rise to proenvironal responses that constantly tend to place 

 the organism for the time being in "satisfied" relations to its 

 environment. 



