22D SEPTEMBER.--Thermometer, at 6 A.M., 58 deg.. This was no sandybedded river like others we had discovered. The bed still consisted of firm clay, and now the rich vegetation on the banks presented so much novelty, that, without the means of carrying an herbarium, I was nevertheless tempted to select a bouquet of flowers for Dr. Lindley, and carry them amongst my folded maps. The very herbage at this camp was curious. One plant supplied an excellent dish of vegetables. There were others resembling parsley, and having the taste of water-cresses with white turnip-like roots. Here grew also a dwarf or tropical CAPPARIS. Among the grasses was a tawny ERIANTHUS, apparently the same as that formerly seen on the banks of the Bogan, and the curious DANTHONIA PECTINATA, gathered in Australia Felix in 1836. There was also amongst the grasses a PAPPOPHORUM, which was perhaps the P. GRACILE, formerly collected in the tropical part of New Holland by Dr. Brown; and a very remarkable new species of the same curious genus, with an open narrow panicle, and little branches not unlike those of a young oat.[*] The river again formed a goodly continuous channel. Its most splendid feature, the wide open plains, continued along its banks, and I set out on this, as we had indeed on all other mornings since we made the discovery, intensely interested in the direction of its course. We had not prolonged our journey very far across the plains, keeping the trees of the river we had left visible on our right, when another line of river trees appeared over the downs on our left. Thus it seemed we were between two rivers, with their junction before us, for the ground declined in that direction. And so we found it. At about seven miles from where we had slept, we arrived at the broad channel of the first river we had traced down, whose impetuous floods had left the trees half bent to the earth, and clogged with drift matter; not on any narrow space, but across a deep section of 400 yards. The rocks in the channel were washed quite bare, and crystal water lay in ponds amongst these rocks. A high gravelly bank, crowned with brigalow, formed the western margin, but no brigalow could withstand the impetuous currents, that evidently, at some seasons, swept down there. It was quite refreshing to see all clear and green, over so broad a water-worn space. The junction with the northern river took place just below, and I continued my journey, not a little curious to see what sort of a river would be formed by these channels when united. I found the direction of the course to be about N.W., both running nearly parallel. About three miles on I approached the united channel, and found the broad, deep, and placid waters of a river as large as the Murray. Pelican and ducks floated upon it, and mussle-shells of extraordinary size lay in such quantities, where the natives had been in the habit of eating them, as to resemble snow covering the ground. But even that reach seemed