342 CORALS AND CORAL ISLANDS. 



thirty acres, and extends almost to the sea. We had no means 

 of accurately measuring the height ; but the specimens were ob- 

 tained at least three hundred feet above the level of the sea, 

 and probably four hundred. The specimens have distinctly the 

 structure of coral. The distance from the sea was two to three 

 miles. 1 ' 



Coral has been reported to occur on the western peninsula 

 of Maui, in some places eight hundred feet above the sea ; but 

 according to C. F. Winslow, the supposed coral does not effer- 

 vesce with acids, and therefore is not calcareous. 



There are large masses of coral rock, according to Mr. An- 

 drews, along the shores of Maui, from two to twelve feet above 

 high water. From his descriptions, this rock appears to be 

 the reef-rock, like the raised reef of Oahu, and is probably 

 proof of an elevation of at least twelve feet. 



On page 322, it is suggested that the westernmost coral 

 islands of the Hawaian range, Ocean and Brooks's Islands, 

 may have undergone a small subsidence. Should the bro- 

 ken wall of emerged rock turn out, on examination, to be 

 coral reef -rock, instead of the beach sand-rock, the facts would 

 prove an elevation of a few feet, instead of a subsidence. The 

 islands differ from Dean's, in having no long range of wooded 

 land on the windward side. 



i. Feejee Islands. — The proofs of an elevation of four to six 

 feet about the larger Feejee Islands, Viti Lebu and Vanua 

 Lebu, and also Ovalau, are given in the author's report on this 

 group. How far this rise affected other parts of the group, he 

 was unable definitely to determine ; but as the extensive bar- 

 rier reefs in the eastern part of the group, rarely support a green 

 islet, they rather indicate a subsidence in those parts than an 

 elevation. 



j. Islands north of the Feejees. — Home Island, "Wallis, El- 



