CHAPTEE XV. 



THE LAW OF EVOLUTION CONTINUED. 



§ 116. Changes great in their amounts and various in 

 their kinds, which accompany those dealt with in the last 

 chapter, have thus far been wholly ignored — or, if tacitly 

 recognized, have not been avowedly recognized. Integra- 

 tion of each whole has been described as taking place simul- 

 taneously with integration of each of the parts into which 

 the whole divides itself. But how comes each whole to di- 

 vide itself into parts ? This is a transformation more remark- 

 able than the passage of the whole from an incoherent to a 

 coherent state; and a formula which says nothing about it 

 omits more than half the phenomena to be formulated. 



This larger half of the phenomena we have now to treat. 

 In this chapter Ave are concerned with those secondary re- 

 distributions of matter and motion that go on along with 

 the primary re-distribution. We saw that while in very 

 incoherent aggregates, secondary re-distributions produce 

 but evanescent results, in aggregates that reach and main- 

 tain a certain medium state, neither very incoherent nor 

 very coherent, results of a relatively persistent character 

 are produced — structural modifications. And our next in- 

 quiry must be — What is the universal expression for these 

 structural modifications? 



Already an implied answer has been given by the title — 

 Compound Evolution. Already in distinguishing as simple 

 Evolution, that integration of matter and dissipation of mo- 



