LESSON 29 



THE STORY THAT A SCRATCHED 

 ROCK TELLS 



MEMORY VERSE 



Speak to the earth, and it shall teach thee. 



Job 12:8 



The Purpose 



This last great change in the world before man came 

 is of special interest because to it is due the contour of 

 the land in the greater part of North America and Europe. 

 Wherever the great ice sheet plougjied its way it left a 

 changed world. 



It altered river systems, caused waterfalls, left lakes 

 scattered here and there, spread out wide plains, lowered 

 mountains and raised valleys. To that ice sheet mankind 

 owes all that has made the north temperate zone the 

 fitting home for his onward struggle in civilization. 



Use the story to illustrate how the earth may indeed 

 speak to us of the wonderful things God has done. 



Suggestions for the Teacher 



This lesson offers excellent opportunity for review of the 

 last three, which deal with diiTerent sorts of rocks and call 

 them nature's story-book. Here we have one of those 

 stories for the lesson. 



The glacial scratches, the smoothed rocks and hills 

 and the ''mantle rock" that was left every where by the 



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