THE YOSEMITE NATIONAL PARK 97 



just where the glaciers crushed most destructively 

 that the greatest amount of beauty is made man- 

 ifest. But as these landscapes have succeeded 

 the preglacial landscapes, so they in turn are 

 giving place to others already planned and fore- 

 seen. The granite domes and pavements, appa- 

 rently imperishable, we take as symbols of 

 permanence, while these crumbling peaks, down 

 whose frosty gullies avalanches are ever falling, 

 are symbols of change and decay. Yet all alike, 

 fast or slow, are surely vanishing away. 



Nature is ever at work building and pulling 

 down, creating and destroying, keeping every- 

 thing whirling and flowing, allowing no rest but 

 in rhythmical motion, chasing everything in end- 

 less song out of one beautiful form into another. 



