4 BEACH GRASS 



the rocks of mountains, their progress is partly 

 determined by undercutting and by "plucking," 

 — not by ice, however, but by the wind. Some 

 of these cirque dunes are changing to the desert 

 type as larger areas of sand, free from vegetation 

 on their windward sides, give freer scope to the 

 wind. 



Irregular dunes, looking like snow-covered 

 mountain tops, pyramidal dunes cut on all sides, 

 and peaks well protected by the binding beach 

 grass are all to be found. Some of the latter 

 stand up like nunataks above the surface of a 

 glacier, or monadnocks on a worn down plain. 

 Eagle dune has constantly changed in outline, 

 disappearing like snow in the hot sunshine on the 

 windward northern side, to be built up to 

 leeward. 



The outline of the beach itself is undergoing 

 many changes. The building of a stone and 

 cement breakwater opposite Little Neck at the 

 mouth of the Ipswich River has caused many 

 changes in its wake. The cove below, where one 

 of the Christmas wrecks occurred in 1909, has lost 

 an indention of at least a hundred yards and the 



