APPENDIX. 197 



Hawaiian Spectator ; he believes it has lately undergone a 

 small elevation, but his evidence does not appear to me 

 satisfactory; the deepest part of the lagoon is said to be 

 only ten feet; nevertheless, I have coloured it blue. — 

 Fanning Isld. (4 N., 15 8° W.), according to Capt. Tromelin 

 {Ann. Maritim., 1829, p. 283), is an atoll : his account, 

 as observed by Krusenstern, differs from that given in 

 Fanning's Voyage (p. 224), which, however, is far from 

 clear; coloured blue. — Washington Isld. (4 N., 159 W.) 

 is engraved as a low island in D'Urville's chart, but is 

 described by Fanning (p. 226) as having a much greater 

 elevation than Fanning Isld., and hence I presume it is not 

 an atoll; not coloured. — Palmyra Isld. (6° N., 162 W.) is 

 an atoll divided into two parts (Krusenstern's Mem. Supply 

 p. 50, also Fanning's Voyage, p. 233); blue. — Smytfts or 

 Johnston's Islds. (17 N., 170 W.). Capt. Smyth, R.N., has 

 had the kindness to inform me that they consist of two 

 very low, small islands, with a dangerous reef off the east 

 end of them. Capt. Smyth does not recollect whether 

 these islets, together with the reef, surrounded a lagoon; 

 uncoloured. 



Sandwich Arch. — Hawaii; in the chart in Freycinet's 

 Atlas, small portions of the coast are fringed by reefs ; and 

 in the accompanying Hydrog. Memoir, reefs are mentioned 

 in several places, and the coral is said to injure the cables. 

 On one side of the islet of Kohaihai there is a bank of 

 sand and coral with five feet water on it, running parallel 

 to the shore, and leaving a channel of about fifteen feet 

 deep within. I have coloured this isld. red, but it is very 

 much less perfectly fringed than others of the group. — 

 Maui; in Freycinet's chart of the anchorage of Raheina, 

 two or three miles of coast are seen to be fringed ; and in 

 the Hydrog. Memoir, "banks of coral along shore" are 



