Coral Reefs

Page 87

As it is so near Atiu, it has been unavoidably coloured red.-- RAROTONGA; Mr. Williams informs me that it is a lofty basaltic island with an attached reef; coloured red.--There are three islands, ROUROUTI, ROXBURGH, and HULL, of which I have not been able to obtain any account, and have left them uncoloured. Hull Island, in the French chart, is written with small letters as being low.--MANGAIA; height about three hundred feet; "the surrounding reef joins the shore" (Williams, "Narrative," page 18); coloured red.--RIMETARA; Mr. Williams informs me that the reef is rather close to the shore; but, from information given me by Mr. Ellis, the reef does not appear to be quite so closely attached to it as in the foregoing cases: the island is about three hundred feet high ("Naut. Mag." 1839, page 738); coloured red.--RURUTU; Mr. Williams and Mr. Ellis inform me that this island has an attached reef; coloured red. It is described by Cook under the name of Oheteroa: he says it is not surrounded, like the neighbouring islands by a reef; he must have meant a distant reef.--TOUBOUAI; in Cook's chart ("Second Voyage," volume ii., page 2) the reef is laid down in part one mile, and in part two miles from the shore. Mr. Ellis ("Polynes. Res." volume iii., page 381) says the low land round the base of the island is very extensive; and this gentleman informs me that the water within the reef appears deep; coloured blue.--RAIVAIVAI, or Vivitao; Mr. Williams informs me that the reef is here distant: Mr. Ellis, however, says that this is certainly not the case on one side of the island; and he believes that the water within the reef is not deep; hence I have left it uncoloured.--LANCASTER Reef, described in "Naut. Mag." 1833 (page 693), as an extensive crescent-formed coral-reef. I have not coloured it.--RAPA, or Oparree; from the accounts given of it by Ellis and Vancouver, there does not appear to be any reef.--I. DE BASS is an adjoining island, of which I cannot find any account.--KEMIN Island; Krusenstern seems hardly to know its position, and gives no further particulars.


CAROLINE Island (10 deg S., 150 deg W.) is described by Mr. F.D. Bennett ("Geographical Journal", volume vii., page 225) as containing a fine lagoon; coloured blue.--FLINT Island (11 deg S., 151 deg W.); Krusenstern believes that it is the same with Peregrino, which is described by Quiros (Burney's "Chron. Hist." volume ii., page 283) as "a cluster of small islands connected by a reef, and forming a lagoon in the middle;" coloured blue.--WOSTOCK is an island a little more than half a mile in diameter, and apparently quite flat and low, and was discovered by Bellinghausen; it is situated a little west of Caroline Island, but it is not placed on the French charts; I have not coloured it, although I entertain little doubt from the chart of Bellinghausen, that it originally contained a small lagoon.--PENRHYN Island (9 deg S., 158 deg W.); a plan of it in the "Atlas of the First Voyage" of Kotzebue, shows that it is an atoll; blue.-- SLARBUCK Island (5 deg S., 156 deg W.) is described in Byron's "Voyage in the 'Blonde'" (page 206) as formed of a flat coral-rock, with no trees; the height not given; not coloured.--MALDEN Island (4 deg S., 154 deg W.); in the same voyage (page 205) this island is said to be of coral formation, and no part above forty feet high; I have not ventured to colour it, although, from being of coral-formation, it is probably fringed; in which case it should be red.--JARVIS, or BUNKER Island (0 deg 20' S., 160 deg W.) is described by Mr. F.D. Bennett ("Geographical Journal", volume vii., page 227) as a narrow, low strip of coral-formation; not coloured.--BROOK, is a small low island between the two latter; the position, and perhaps even the existence of it is doubtful; not coloured.--PESCADO and HUMPHREY Islands; I can find out nothing about these islands, except that the latter appears to be small and low; not coloured.--REARSON, or Grand Duke Alexander's (10 S., 161 deg W.); an atoll, of which a plan is given by Bellinghausen; blue.-- SOUVOROFF Islands (13 deg S., 163 deg W.); Admiral Krusenstern, in the most obliging manner, obtained for me an account of these islands from Admiral Lazareff, who discovered them.

Charles Darwin

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