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7, 



Figure 19. — Shingle beach at Dunhams Point, Deer Isle, 

 showing gravelly lower beach, devoid of vegetation; conif- 

 erous forest on cliffs in background. 



Figure 20. — Upper beach at same locality as that shown 

 in Figure 19; Mertensia maritima and Oenothera muricata- 

 in foreground; Elymus arenarius var. villosus, Lathyrus 

 maritimus and Convolvulus sepium var. pubescens in* 

 background. 



