GOD'S GIFT OF SUNLIGHT 313 



the solar spectrum. Then they burn the different 

 minerals which make up our earth, and taking the 

 spectrum of these and of different gases have com- 

 pared it with that of the sun. In this way they 

 found that the sun contains some of the same metals 

 and gases, such as iron, copper, platinum and hy- 

 drogen, that we know on our earth. 



In the same way, by a combination of glass prisms, 

 they have made the light that comes from all those 

 distant stars resolve itself, and tell us of what they 

 are made. A great secret those stars have given 

 up, — those stars so much farther away from us 

 than even our own sun. It is nothing less than that 

 they themselves are suns, and that our sun is a 

 star! 



Just with glass, which is made from such a com- 

 mon thing as sand, have these wonders been dis- 

 covered. But the hand of man first shaped the 

 glass, and the thought of those who searched deeply 

 and reverently into nature's secrets helped to ex- 

 plain what was seen. 



It is by the eager search, continued through cen- 

 turies, that people have learned about this vast uni- 

 verse of which our world is a part. And all that we 

 learn makes us more reverent, more willing to trust 

 God, more eager to learn His real purpose for our 

 lives. 



