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APPENDIX. 
On one side of tlie islet of Kohailiai there is a bank of 
sand and coral with five feet of water on it, running parallel 
to the shore, and leaving a channel of about fifteen feet 
deep within. I have coloured this island red, but it is 
very much less perfectly fringed than others of the group. 
— Maui : in Freycinet’s chart of the anchorage of Baheina, 
two or three miles of coast are seen to be fringed ; and in 
the Hydrog. Memoir ‘ banks of coral along shore ’ are 
spoken of. Mr. F. D. Bennett informs me that the reefs, 
on an average, extend about a quarter of a mile from the 
beach ; the land is not very steep, and outside the reefs the 
sea does not become suddenly deep ; coloured red. — Morotoi, 
I presume, is fringed : Freycinet speaks of the breakers 
extending along the shore at a little distance from it. 
From the chart, I believe it is fringed ; coloured red. — Oahu : 
Freycinet, in his Hydrog. Memoir, mentions some reefs. 
Mr. F. D. Bennett informs me that the shore is skirted for 
forty or fifty miles in length. There is even a harbour for 
ships formed by the reefs, but it is at the mouth of a valley ; 
red. — Atooi, in La Peyrouse’s charts, is represented as 
fringed by a reef, in the same manner as Oahu and 
Morotoi ; and this, I am informed by Mr. Ellis, is of coral- 
formation on part at least of the shore ; the reef does not 
leave a deep channel within ; red. — Oneehow : Mr. Ellis 
believes that this island is also fringed by a coral-reef : 
considering its close proximity to the other islands, I have 
ventured to colour it red. I have in vain consulted the works 
of Cook, Vancouver, La Peyrouse, and Lisiansky for any 
satisfactory account of the small islands and reefs which lie 
scattered in a N.W. line prolonged for a great distance from 
the Sandwich group, and hence have left them uncoloured, 
with one exception ; for I am indebted to Mr. F. D. Bennett 
for informing me of an atoll-formed reef, in lat. 28° 22' N., 
of this island not abundant.’ In the Narrative of the Challenger 
Voyage (p. 699) reefs are mentioned as occurring at Honolulu.] 
