19TH MAY.--I could now venture to halt a day without any apprehensions about leaving sufficient water for the party who were following us; and I had recently obtained many angles I wished to put together, in order to learn the character of the country, which required much study. That I should have overlooked an extensive country, without perceiving any indication of a large river flowing through it, almost at my feet, seemed a singular circumstance, and I was still as little aware of its ultimate course. I found on laying down my work on paper, that the chief elevations ran, in a continuous line, nearly due north from Mount Red Cap, Bindango, and Bindyego, to the high ranges nearer the coast. That the nascent stream on the western side of Bindango (the Amby), and flowing first N. W., turned towards the S. W. within a range of basaltic rock, which was a branch from the main stem between Bindango and the northern range. Thus, upon the whole, this seemed but one side, and that the south-eastern, of the basin of the river we had discovered. Where was the other? The marks of flood were not high. The waters were full of fish, but they would not take the bait. Thermometer, at sunrise, 46 deg.; at noon, 73 deg.; at 4 P. M., 76 deg.; at 9, 65 deg.. 20TH MAY.--The sky was wholly overcast, and drizzling rain afforded us some grounds for hoping that the great impediment to our exploration during this dry season, was at an end. The temperature underwent a sudden change, and this day was the coldest as yet experienced during the journey; the thermometer at noon being only 48 deg.. F. Yuranigh contrived to catch three fishes, of a kind wholly different from those of the rivers in the south; leaving it doubtful, again, whether this river could belong to the system of the Barwan. Thermometer, at sunrise, 53 deg.; at noon, 48 deg.; at 4 P. M., 45 deg.; at 9, 45 deg..