INDEPENDENT TRANSFORMATION DIVERGENT. I9I 
4. The Transformation of Freely Intergenerating Organisms Never 
Permanently Divergent. 
I mention these eight principles of transformation, not with the 
purpose of entering upon a full discussion of the same, but simply to 
point out the relation in which they all stand to divergent, or poly- 
typic, evolution. It is evident that, whether acting separately or 
together, they can never be the cause of divergent evolution in organ- 
isms that are freely intergenerating; for in such a group of organisms 
whatever modifies one part of the group in characters that are 
inheritable will, ere many generations, modify the whole. If the 
group is exposed to a variety of inharmonious conditions, which, with 
independent generation would produce divergent character, with free 
intergeneration, the only result will be variation. Without indepen- 
dent generation (or isolation) there can be no permanent divergence. 
5. Independent Transformation Always Divergent. 
If any species is divided into two or more sections that do not inter- 
generate and that are severally subject to highly complex transform- 
ing influences, it may only be by a series of coincidences which the 
reason refuses to receive as in the slightest degree probable that any 
two sections will be modified in exactly the same way. This high 
degree of probability, amounting to a certainty, that when causes of 
transformation codperate with causes producing isolation the result 
in successive generations will be increasing degrees of segregation and 
of divergence, is what I call the law of intensive segregation. The 
different forms of this principle, resting on the certainty that the 
codéperation of any one of the principles of transformation with any 
one of the principles of independent generation will produce increas- 
ing segregation with increasing divergence, are the following: 
(1) Assimilational intension, or segregation and divergence through 
independent assimilation. 
(2) Stimulational intension, or segregation and divergence through 
independent stimulation. 
(3) Suetudinal intension, or segregation and divergence through 
independent suetude. 
(4) Emotional intension, or segregation and divergence through 
independent emotional transformation. 
(5) Selectional intension, or segregation and divergence through 
independent selection. 
(6) Eliminational intension, or segregation and divergence 
through independent and indiscriminate elimination. 
