THE EVOLUTION PROCESS 247 



which first makes the mammal, and then 

 marks each of its distinctive uplifts of further 

 progress (from monotreme to marsupial, 

 and thence to placental), that increase. ...of 

 care, that frequent appearance of 



sociality and co-operation which, even in its 

 rudest forms, so surely secures the success 

 of the species attaining it, be it mammal or 

 bird, insect or even worm qjTthese survivals 

 of the truly fittest, throughlove and sacri- 

 fice. sociability and co-operation simple to 

 complex Aged far other prominence Jjhan 

 tfrey can possibly receive even by some mil- 

 dewing attenuation of the classic economic 

 hypothesis of the progress of the species 

 essentially through the internecine struggle 

 among its individuals at the margin of 

 subsistence. 



Q^ir theory t.Vma fq rushes a re-interpreta- 

 tipn of the forms attained by plants ancL 



b the 



received hypothesis (and, if space allowed, 

 traceable into no less refinement of detail), 

 yet with an essentially allied view of the 

 process and factors of organic evolution as a 

 whole. Most briefly stated, the vie^y of evo- 

 thus 



tion: its branchings essentially ^tfcliotomous 

 rather than indefinite, with progress essen- 

 tially through the subordination of individual 



