THE WORK OF THE OCEAN 



311 



Fig. 257. An elevated barrier beach on the coast of California. 



Fig. 258. Sketch-map of a part of the New Jersey coast. The dotted belt 

 at the east is the barrier, modified by the wind. The area marked by 

 diagonal lines is the mainland; the intervening tract is marsh-land. The 

 numbers show the depth of water in feet. Scale: % m ch = 1 mile. 



