ICE AND SNOW IN THE DUNES loi 



moraine material of course was falling in as the 

 ice melted, and the sides maintained an angle as 

 steep as the material would lie." 



The "miniature kettles" in the dunes are damp 

 and cracked, indicating melting snow beneath. 

 The truth of this surmise is easily proved by- 

 digging through the two or three inches of sand. 

 Detached nodules of snow covered with sand in 

 melting reproduce on a small scale the kettle- 

 holes of the glacial period. When the snow is 

 all melted the sand dries up, the cracks disappear, 

 the dry sand slips down and blows into the hole 

 and this interesting reminder of the great glacial 

 period is obliterated. 



