THE STORY OF STEAM 287 



Iron, coal and water are three most useful servants 

 working together under man's thought and direction, 

 enabling him to do great things. Without coal, the 

 great iron and steel engines could not be made, nor 

 could there be water enough converted into steam to 

 fill them. 



Rocks and water, such common things, yet what 

 use we make of them ! What a power to help is the 

 black metal in the rocks; the black, glistening rock 

 that will burn; and the water that is so abundant 

 on our earth. 



Do you not suppose that the world contains many 

 more gifts as useful, if we could only find what they 

 are? 



But that is man's duty, to search throughout the 

 world with seeing eyes and a reverent mind, looking 

 for the gifts God has given to us in nature, and for 

 the laws which enable us to understand and use 

 them. 



