The Development Theory. 193 



it to revolve around its center of gravity; that 

 the increase of this motion resulted in the 

 casting off of 'its outer portion into space, 

 which outcast mass would in time become 

 planets and moons circulating around the cen- 

 tral mass, and that our present sun is this 

 great central residue of all this. 



With the great mass of the world's edu- 

 cated thinkers this explanation of God's mode 

 of creating the solar system has passed from 

 the domain of hypothesis to that of accepted 

 theory; one capable of explaining facts in its 

 connection not capable of explanation on any 

 other theory. 



No one now. thinks of objecting to it on 

 the ground oi its giving a substitute in its 

 explanations for the power of God and thus 

 promoting atheism, although this was often 

 done when the hypothesis was first published. 

 You need not be reminded that this nebular 

 hypothesis is one of development as applied 

 to the solar system. 



But the field of scientific work which of all 

 others shows the most marked change in the 



