Car. e Wilberforce, highest part, N. 25° 40' W. Mount Bonner, N. 51 55 W. Point Dundas, distant 2 miles, N. 52 30 W. Leaving Drimmie Head, I steered over to the middlemost of the three rocks in the bay, with a depth of water from 3 to 6½ fathoms, on muddy ground. These rocks lie nearly due south from Point Dundas, and I proposed to observe the latitude on both sides from thence, whilst lieutenant Flinders did the same at the point, that a base line for the survey might be obtained from the difference; but the difficulty of finding a convenient position disappointed me, and no satisfactory base was obtained here; so that the extent of this bay in the chart is rather uncertain. My course from the three rocks was directed S. S. E., for the south side of the bay; the distance was three miles, and the depth for half the way from 5 to 3 fathoms, but afterwards shoal. Upon some low cliffs there, partly composed of pipe clay, a few bearings were taken; and after walking a little way inland, to examine the country, I rowed back to a small island near the south extremity of Drimmie Head, with soundings mostly between 3 and 6½ fathoms; but there is no ship passage between it and the head. Having taken some additional bearings and looked over the islet, I returned on board in the evening; passing in the way near a rock, dry at half tide, but round which, at a ship's length, there is 2½ to 3 fathoms. TUESDAY 15 FEBRUARY 1803 Some further bearings and observations were taken on the 15th, and my intention to sail on the following morning being frustrated by a fresh wind at north-west, with unsettled weather, Messieurs Brown and Bauer accompanied me [WEDNESDAY 16 FEBRUARY 1803] in a boat excursion to the eastern part of the bay. We first landed at the islet near Drimmie Head, that Mr. Brown might examine its mineralogy; and then steered three miles eastward for a low projection covered with mangroves, growing on rocks of strongly impregnated iron stone. Coasting along the mangrove shore from thence northward, and after landing at one other place, we came to the isthmus which connects Drimmie Head to the land of Point Dundas; and it being near high water, the boat was got over the isthmus by a small passage through the mangroves, and we reached the ship at one o'clock, where every thing was prepared for weighing the anchor.