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D. W. JOHNSON AND W. G. REED, JR. 



tasket Beach to survive, and of these two the Hull district vvall probably 

 last much longer. If this interpretation is essentially correct, the 

 relations in the Nantasket region will, in the remote future, resemble 

 those indicated in Fig. 9. It is possible that the connecting bars may 

 be broken through by the sea in one or more places, and that sand 

 spits may replace the bars here shown. This will depend on local 

 conditions of water depth and other factors which cannot be predicted. 



Fig. II. — Whitehead Drumlin, showing concave marine cliff on north side. 



At present the area here shown is shallow, and favors the building of 

 bars as indicated. 



The protection of Great Hill is the key to the preservation of the 

 entire Nantasket Beach district. A sea-wall has been constructed for 

 the preservation of Little Hill, and this, of course, means protection 

 to the adjacent areas of Great Hill. By such protective measures man 

 may indefinitely postpone the normal changes which Nature would 

 effect in the Nantasket area. It is interesting to note that man has 

 begun his work in controlling the development of Nantasket Beach 

 just at the time the beach has reached the greatest size which Nature 

 could probably give it. Heretofore the beach has been increasing in 



