1 88 The Development Theory. 



This tendency to wider, more generalized 

 facts is the one characteristic of recent scien- 

 tific experiments. Our thoughts must be ad- 

 justed to this current of things if we would 

 keep our theology a working power among 

 men. 



Still more plainly is this wider generaliza- 

 tion marked in the domain of chemistry. In 

 chemistry, as in other departments of science, 

 experiments continually reveal other and 

 wider facts and forces underlying our surface 

 ones. 



The discoveries of late years through the 

 use of the spectroscope have added greatly to 

 this conviction. These show that the distant 

 stars are composed of chemical elements like 

 those of our own earth. This certainly gives 

 one a sufficiently generalized idea of the na- 

 ture of the materials out of which sun, moon 

 and planets are made. If we consider these 

 materials as we find them in the rocks around 

 us we shall find evidence enough of develop- 

 ment from single elements to complex com- 

 binations. 



