2bO .Tames D. Dana, Esq., on 



We were, however, informed by Kirby, a sailor taken from 

 Kuria, that the reef of Apamama was elevated precisely like 

 that of Apia, to a height of five feet ; and this was con- 

 firmed by Lieutenant Dehaven, who was engaged in the sur- 

 vey of the reef. We were told, also, that Kuria and Na- 

 nouki were similar in having the reef elevated, though to a 

 less extent. It would hence appear that the elevations in 

 the group increase to the northward. 



Maraki, to the north of Apia, is wooded throughout. We 

 sailed around it without landing, and can only say that it has 

 probably been uplifted like the islands south. Makin, the 

 northernmost island, presented in the distant view no cer- 

 tain evidence of elevation. 



The elevation of the Kingsmills accounts for the long con- 

 tinuity of the wooded lines of land, an unusual fact consider- 

 ing the size of the islands. The amount of fresh water ob- 

 tained from springs is also uncommon (xii., 48). The wear 

 from storms would also be greater on islands which have 

 been elevated. 



m. Radack, Ralick, and Caroline Islands. — No evidences 

 of elevation in these groups are yet known. The very small 

 amount of wooded land on the Pescadores inclines us to sus- 

 pect rather a subsidence than an elevation ; and the same 

 fact might be gathered with regard to some of the islands 

 south, from the charts of Kotzebue and Kruesenstern. 



n. Ladrones. — The seventeen islands which constitute this 

 group, may all have undergone elevations within a recent 

 period, but owing to the absence of coral from the northern, 

 we have evidence only with regard to the more southern. 



Guam, according to Quoy and Gaymard, has coral rock 

 upon its hills more than six hundred feet (one hundred toises) 

 above the sea. 



Rota, the next island north, afforded these authors similar 

 facts, indicating the same amount of elevation. 



o. Pelews and neighbouring Islands. — The island Feis, 

 three hundred miles south-west of Guam, is stated by Dar- 

 win, on the authority of Lutke, to be of coral, and ninety feet 

 high. Mackenzie Island, seventy-five miles south of Feis, is 

 a low atoll, as ascertained by the Expedition. No evidences 

 of elevation arc known to occur at the Pelews. 



