202 APPENDIX. 



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 Viti Group. — The best chart of the numerous 

 islands of this group, will be found in the Atlas of the 

 Astrolabe's Voyage. From this, and from the description 

 given in the Hydrog. Memoir, accompanying it, it appears 

 that many of these islands are bold and mountainous, rising 

 to the height of between 3,000 and 4,000 feet. Most of the 

 islands are surrounded by reefs, lying far from the land, 

 and outside of which the ocean appears very deep. The 

 Astrolabe sounded with 90 fathoms in several places about 

 a mile from the reefs, and found no bottom. Although the 

 depth within the reef is not laid down, it is evident from 

 several expressions, that Capt. D'Urville believes that ships 

 could anchor within, if passages existed through the outer 

 barriers. The Chev. Dillon informs me that this is the 

 case : hence I have coloured this group blue. In the S.E. 

 part lies Batoa, or Turtle Island of Cook {2nd 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 unfathomable; coloured pale blue. At the 

 distance of a few miles, Capt. Cook {ibid. p. 24) found a 

 circular coral-reef, four or five leagues in circuit, with deep 

 water within ; " in short, the bank wants only a few little 

 islets to make it exactly like one of the half-drowned isles 

 so often mentioned," — namely, atolls. South of Batoa, lies 

 the high island of Ono, which appears in Bellinghausen's 

 atlas to be encircled ; as do some other small islands to the 

 south ; coloured pale blue : near Ono, there is an annular 

 reef, quite similar to the one just described in the words of 

 Capt. Cook; coloured dark blue. 



