PACIFIC OCEAN. 211 



Wallis's Voyage, (4to. edit.) it is evidently encircled by a 

 reef; coloured blue. It is, however, remarkable that Bos- 

 cawen Island, immediately adjoining, has no reef of any kind ; 

 uncoloured. 



Wallis Island, 13° S., 176° W. : a chart and view of this 

 island in Wallis's Voyage (4to. edit.) shows that it is encircled. 

 A view of it in the Naut. Mag. July 1833, p. 376, shows the 

 same fact. Nine islands, most of them high, are said in 

 "Wilkes U. S. Exploring Expedition (vol. ii. p. 157) to be 

 enclosed within the same reef, through which, it is asserted, 

 ships can enter ; coloured blue. 



Alloufatou, or Horn Island, Onouafu, or Proby Island, 

 and Hunter Islands, lie between the Navigator and Fidji 

 groups. I can find no distinct accounts of them. 



Fidji or Feejee or Viti Group. — Until lately the best 

 chart of the numerous islands of this group, was that in 

 the Atlas of the Astrolabe's Voyage ; but now the islands 

 have been surveyed during the U. S. Exploring Expedition, 

 and full information respecting them and the reefs has been 

 given by Dana. Many of the islands are bold and mountain- 

 ous, and are surrounded by reefs, lying far from the land, and 

 outside the ocean appears very deep. The Astrolabe sounded 

 with 90 fathoms in several places about a mile from the reefs, 

 and found no bottom. It is evident that the water within 

 many of the encircling reefs is deep : as indeed I was formerly 

 assured was the case by Dillon. Beyond the high and en- 

 circled islands there are numerous atoll-formed reefs. Hence 

 the whole group has been coloured blue. In the S.E. part 

 lies Batoa, or Turtle Island of Cook (Second Voyage, vol. ii, 

 p. 23, and chart; 4to. edit.), surrounded by a coral-reef, 'which 

 in some places extends two miles from the shore ;' within the 

 reef the water appears to be deep, and outside it is unfathom- 

 able ; coloured pale blue. At the distance of a few miles, 

 Captain Cook (ibid. p. 24) found a circular coral-reef, four or 

 five leagues in circuit, with deep water within ; ' in short, 



p 2 



