t and u are two reefs that were seen at a distance, and appeared to be detached from each other. BIRD ISLES (the Lagoon Islands of Lieutenant Bligh) consist of three low bushy islets encompassed by a reef: the islands are at the outer verge of the reef, and may be passed within a quarter of a mile; the north-east island is in latitude 11 degrees 44 minutes 15 seconds, and longitude 142 degrees 58 minutes 45 seconds. McARTHUR'S ISLES consist of four low bushy islets, of which two are very small; they are encompassed by a reef of more than three miles long, and are separated from the Bird Isles by a channel three miles and a half wide. HANNIBAL'S ISLES are three in number, low and covered with bushes, the easternmost is near the extremity of the reef encircling the whole, and is in latitude 11 degrees 34 minutes 15 seconds, and longitude 142 degrees 51 minutes 20 seconds.* (*Footnote. There is a dry sand at one mile and three-quarters, and another at two miles and a half North-North-West from North Hannibal Island.) v and w; these shoals are separated by a safe channel of a mile and a quarter wide; v is circular, and has a dry sand at its north-west edge, and a rocky key at its south-west end; the channel between it and Hannibal's Islands is two miles and a half wide: w is nearly four miles long, and is entirely covered; the course between them is west, but, by hauling close round the east end of v, a West by North 1/2 North course will carry a vessel a quarter of a mile to leeward of the west end of w; the north-west extreme of w is three miles and a quarter South 35 degrees West from Islet 1. The islets 1 and 2 are contained in a triangular-shaped reef, of about a mile and three quarters in extent; they are covered with low trees. Islet 1 is in latitude 11 degrees 28 minutes 45 seconds. Number 3 is a sandy islet crowned with bushes at the north-west end of a coral reef of about a mile and a half in length. Between the two latter reefs there appeared to be a channel of a mile wide in the direction of about North-West. 4, 5, and 6, are sandy islets covered with bushes, on small detached reefs, with, apparently, a passage between each: 4 is in latitude 11 degrees 22 minutes 30 seconds. 7, a small bushy island,* is separated from CAIRNCROSS ISLAND by a channel two miles wide. The latter is a small woody island, situated at the north-west end of a coral reef, more than two miles long and one broad; the north-west point of the reef runs off with a sharp point for about a quarter of a mile from the islet. There is good anchorage under it, but the depth is fifteen fathoms, and the sea is rather heavy at times with the tide setting against the wind; the latitude of its centre is 11 degrees 33 minutes 30 seconds, and its longitude 142 degrees 50 minutes 35 seconds. (See volume 1 and above.) (*Footnote. A rocky reef extends for two miles to the southward of islet 7. Roe manuscript.)