168 



CORALS AND CORAL ISLANDS. 



Swain's and Jarvis's Islands (figs. 3 and 4), are of still 

 smaller size, and have no lagoon. The former is densely 

 covered with foliage, while the surface of the latter is sandy. 

 Both islands are a little depressed about the centre, a fact 

 indicating that there was formerly a lagoon. 



IIENUAKE, OR HONDEN. 



Fakaafo, or Bowditch (fig. 5), 200 miles north of the 

 Navigator Islands, is the type of a large part of coral islands. 

 The bank of reef has only here and there emerged from the 



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"-S^i>,y,i-i^cAliJiauUiiii 



SWAIN S ISLAND. 



1%-r 



jarvis's island. 



FAKAAFO, OR BOWDITCH'S ISLAND. 



waves and become verdant ; in other portions the reef is of 

 the usual height, — that is, near low-tide level, — excepting a 

 few spots elevated a little by the accumulation of sand. 



