CLACK'S ISLAND is a high rock, situated at the south-east end of reef b, in latitude 14 degrees 4 minutes 45 seconds, and longitude 144 degrees 11 minutes 45 seconds, and, being a bare black rock, with no apparent vegetation, is a conspicuous object: there is another rock on its north-east end. (See above.) The reef is of circular shape, and three miles in diameter. The shoal marked a was not seen by us. H.M. sloop Satellite struck upon it in June, 1822, on her passage to India. The following marks for it were obligingly communicated to me by Captain M.J. Currie, of H.M. sloop Satellite, who sent a boat to examine it upon her second voyage the following year: "In crossing the northern part of Bathurst Bay, and nearly in mid-channel, between Cape Flinders and the low wooded island, there is a small patch of sunken rocks, lying north and south, not more than a cable's length in extent, the least water being one fathom. The Satellite grounded on them in two fathoms, in June, 1822. I sent a boat to examine this shoal in making the same passage in August, 1823, and found it to be under the following bearings (by compass): namely, Cape Flinders, South-West by West 3/4 West; the high peak on the south-east part of Flinders' Group, South 1/4 West; the highest of Clack's Islands, North-West 1/2 West, and Cape Melville East 1/2 South. It is a dangerous shoal in running for Cape Flinders, but may be easily avoided by steering near the low wooded island, to the north-east of the cape, or by keeping the shore of Flinders' Group on board, which is perhaps preferable. The variation is 5 degrees 40 minutes East."* (*Footnote. The shoal is in a line with, and half way between, the flat-topped hill on the north island of Flinders' Group, and the centre of the low wooded island, and is nearly joined to some shoal-water that extends for two miles from the latter island. Roe manuscript.) PRINCESS CHARLOTTE'S BAY is an extensive bight in the coast, twenty-two miles deep, and thirty-one broad; its shores are low, and at the bottom in latitude 14 degrees 29 minutes there is a mangrove opening. JANE'S TABLE LAND, in latitude 14 degrees 29 minutes 15 seconds and longitude 144 degrees 4 minutes 45 seconds, is a remarkable flat-topped hill at the bottom of the bay, rising abruptly from the surrounding low land: it is about five miles from the coast; its summit, by the angle it subtended, is about a mile in length. Excepting this hill, no other high land was seen at the bottom of the bay.