These reefs were not exactly those seen by Mr. Campbell; but they are probably not more than five or six leagues to the north-westward of them, and form part of the same _barrier_ to the coast. In standing on between the two reefs above set, others, or parts of the same, came in sight ahead; upon which I shortened sail to the three top sails, desired the Lady Nelson to take the lead, and bore away north-westward along the inner side of the northern reef. In an hour we had passed its west end; but another reef came in sight, and for a time obliged us to steer W. by S. At four o'clock we ran northward again, following the direction of the reef on its lee side; and at six anchored in 27 fathoms, coarse sand, in the following situation: Latitude observed from the moon., 21° 4' S. Longitude from bearings, 150 19 E. Nearest part of the reef, dist. 2½ miles, E. ½ S. A smaller reef, distant 3 miles, N. W. ½ N. Percy Isles, Pine Peak of No. 3, S. 9 0 W. Cumberland Island marked 'k', W. 6 0 N. The reefs were not dry in any part, with the exception of some small black lumps, which at a distance resembled the round heads of negroes; the sea broke upon the edges, but within side the water was smooth, and of a light green colour. A further description of these dangers is unnecessary, since their forms and relative positions, so far as they could be ascertained, will be best learned from the chart. Until midnight, five hours after the moon had passed the meridian, a tide came from S. by E., half a mile per hour. The ship then tended to the N. E. by E.; and this tide, whose rate was one mile, appearing to be the flood, led me to suppose there might be an open sea in that direction. In the morning [WEDNESDAY 6 OCTOBER 1802], I sent a boat to lieutenant Murray with instructions for his guidance in case of separation; and appointed him Murray's Islands in Torres' Strait, discovered by captain Edwards in 1791, for the first rendezvous; cautioning him to be strictly on his guard against the treachery of the natives.