At daylight, after sounding ineffectually with 100 fathoms, we bore away on our western course. Two reefs were seen at six o'clock; the one bearing N. by W.½ W. three, and the other W. by N. ½ N. four miles. They seemed to be small, and unconnected; but in all probability were parts of those which form the north side of the Pandora's Entrance, and which captain Bligh, who saw them more to the northward, named collectively, Portlock's Reef. The situation of the southernmost part, deduced from the preceding and following noons, will be 9° 48' south, and 144° 45' east. [EAST COAST. TORRES' STRAIT.] After passing these reefs, our course was west, by compass; and nothing further was descried till eleven o'clock; breakers then came in sight ahead, and we hauled up north-east, till noon; when the observed latitude from both sides was 9° 36' 55", longitude 144° 13', and the depth 50 fathoms on a bottom of fine, white sand. The reef was distant one mile and a half in the nearest part, and three miles at the extremes, which bore N. 15° E. and S. 60° W.; a sand bank or key upon it bore W. ¾ S., and is probably dry at all times, for it was then near high water. Finding by the latitude that we had been set considerably to the north, and were out of the parallel of Murray's Islands, I tacked to the S. S. W.; and at two o'clock, the largest island was seen bearing S. 38° W. about five leagues. Soon afterward, a reef came in sight to the south-east, extending in patches toward the islands; and presently another was distinguished to the westward, from the mast head, which took nearly a parallel direction, the passage between them being about four miles wide. We steered along the lee side of the eastern reef, at the distance of a mile, with soundings from 29 to 24 fathoms, coral sand, until four o'clock; the reef then trended more southward, and we edged away for the islands, of which Mr. Westall sketched the appearance (Atlas Plate XVIII. View 10). At half past five, the largest island bore S. 36° E. to 28° W., one mile and a half; and there being more reefs coming in sight to the westward, the anchor was immediately let go in 20 fathoms, coarse sand and shells. The north and east sides of the island are surrounded by a reef, which may probably include the two smaller isles on its southwest side; but it is totally unconnected with the reefs to the north-east. These appear to be a northern continuation of the vast bank, on the outside of which the Pandora sailed as far as 11½° south, and in the chart of captain Edwards' track, published by Mr. Dalrymple, it is marked as surrounding the islands; whereas it is at least four miles distant from the reef which probably does surround them.