e; but did not show themselves any farther. They were Unio eaters to a great extent, judging from the heaps of shells we saw along the river; the species of Unio on which they lived, was much smaller than that we had observed on the Roper. John and Charley saw a native in the bed of the river, busily employed in beating a species of bark, very probably to use its fibres to strain honey. He did not interrupt his work, and either did not see them, or wished to ignore their presence. The horse flies began to be very troublesome, but the mosquitoes fortunately did not annoy us, notwithstanding the neighbourhood of the river, and the late rains. Charley and Brown shot five geese, which gave us a good breakfast and luncheon.
A strong breeze from the northward set in late every afternoon, since we had descended into the valley of the South Alligator River.
Nov. 25. — We travelled about seven miles and a half N.W. by W., to lat. 13 degrees 0 minutes 56 seconds. I intended to follow the sandy bergue of the river, but a dense Pandanus brush soon compelled us to return, and to head several grassy and sedgy swamps like those we passed on the last stage. Chains of small water-holes, and Nymphaea ponds, ran parallel to the river; and very extensive swamps filled the intervals between rather densely wooded ironstone ridges, which seemed to be spurs of a more hilly country, protruding into the valley of the river. Some of these swamps were dry, and had a sound bottom, allowing our cattle to pass without difficulty. Others, however, were exceedingly boggy, and dangerous for both horse and man; for Charley was almost suffocated in the mud, in attempting to procure a goose he had shot. The swamps narrowed towards the river, and formed large and frequently rocky water-holes, in a well defined channel, which, however, became broad and deep where it communicated with the river, and which in many places rivalled it in size. A belt of drooping tea-trees surrounded the swamps, whilst their outlets were densely fringed with Pandanus. The Livistona palm and Cochlospermum gossypium grew on the ridges; the tea-tree, the stringy-bark, the leguminous Ironbark and Eugenia were useful timber. The whole country was most magnificently grassed.
A Porphyritic sienite cropped out at the head of the first swamp, about a mile from our last camp.
We had cut our rifle balls into slugs, with which Charley and Brown shot three geese (Anseranus melanoleuca, Gould).
A low range was seen at the south-east end of the large swamp on which we encamped.
Nov. 26. — We travelled about nine miles and a half N.N.W. to lat. 12 degrees 51 minutes 56 seconds. After having once more seen the river, where it was joined by the broad outlet of a swamp, I turned to the northward, and passed over closely-wooded and scrubby ridges of ironstone and conglomerate, with pebbles and pieces of quartz covering the ground. Livistona inermis, R. Br. formed small groves; and Pandanus covered the hollows and banks of two small creeks with rocky water-holes going to the westward. About six miles from our last camp, an immense plain opened before us, at the west side of which we recognized the green line of the river. We crossed the plain to find water, but the approaches of the river were formed by tea-tree hollows, and by thick vine brush, at the outside of which noble bouquets of Bamboo and stately Corypha palms attracted our attention. In skirting the brush, we came to a salt-water creek (the first seen by us on the north-west coast), when we immediately returned to the ridges, where we met with a well-beaten foot-path of the natives, which led us along brush, teeming with wallabies, and through undulating scrubby forest ground to another large plain. Here the noise of clouds of water-fowl, probably rising at the approach of some natives, betrayed to us the presence of water. We encamped at the outskirts of the forest, at a great distance from the large but shallow pools, which had been formed by the late thunder-showers. The water had received a disagreeable sour aluminous taste from the soil