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arm, and the extensive flats made it impossible to land upon the south side of the bay; and finding that nothing more could be done at this time, I returned to the ship.

The numerous shoals in Keppel Bay rendering the services of the Lady Nelson in a great measure useless to the examination, I directed lieutenant Murray to run out to the hummocky island lying to the north-east from Cape Keppel, and endeavour to take us some turtle; for there were no signs of inhabitants upon it, and turtle seemed to be plentiful in this neighbourhood. He was also to ascend the hills, and take bearings of any island or other object visible in the offing; and after making such remarks as circumstances might allow, to return not later than the third evening.

Next afternoon, I went, accompanied by the naturalist, to examine the eastern arm of the bay, which is divided into two branches. Pursuing the easternmost and largest, with soundings from 6 to 3 fathoms, we came to several mangrove islands, about four miles up, where the stream changed its direction from S.S.E. to E.S.E., and the deepest water was 2 fathoms. A little further on we landed for the night, cutting a path through the mangroves to a higher part of the northern shore; but the swarms of musketoes and sand flies made sleeping impossible to all except one of the boat's crew, who was so enviably constituted, that these insects either did not attack him, or could not penetrate his skin. It was high water here at nine o'clock; and the tide afterwards fell between ten and twelve feet.

In the morning, I set Broad Mount in Keppel Bay at N. 61° 20′ W. and Mount Larcom S. 8° 20′ E.; and we then steered onward in six to eight feet water, amongst various little islands of mud and mangroves; the whole width of the stream being still more than half a mile, nearly the same as at the entrance. Three miles above the sleeping place the water began to increase in breadth, and was 2 fathoms deep; and advancing further, it took a direction more southward, and to our very agreeable surprise, brought us to the head of Port Curtis; forming thus a channel of communication from