A feeling of thirst and lassitude such as I had never before experienced soon began to overcome all of us; for such a state of things we had unfortunately landed quite unprepared, having only two pints of water with us, a portion of which it was necessary to give to the dogs; who apparently suffered from the heat in an equal degree with ourselves. These distressing symptoms I can only ascribe to the extreme heat of the sun reflected from the sandstone rocks, and our previous long confinement on board. LOSS OF OUR THREE DOGS. Our small supply of water, although but sparingly used, was soon exhausted; and the symptoms of lassitude, before so excessive, now became far worse. As usual, the endurance of the animals gave way before that of the men. We had not completed more than a mile of our route (although it was far more if the ascents and descents were taken into account) when Ranger, a very fine young dog, dropped behind some rocks, and although we turned back to look for him directly he was missed he could not be found. The next to give way was Ringhalz, a fine Cape buck-hound; he fell amongst the rocks, and died almost instantly. The only dog now left was a greyhound, who manifested his extreme distress by constantly lying down. For some time we dragged him along, but he was at last from necessity abandoned. The cry of water was at length raised by one of the party, and immediately afterwards we found ourselves on the edge of a deep ravine, the precipitous sides of which were composed of nearly horizontal layers of red sandstone. Down these some of us contrived to scramble, although not without difficulty; but on reaching the bottom we had the mortification to find the water salt; and as it would have been very laborious to follow its course along the bottom of the ravine over the mud, mangroves, and rocks which filled it, we had the pleasure of scrambling up again as we best could. For some short time we remained seated on the edge of the cliffs above the ravine; but as there was no shelter here from the sun's rays, and the pangs of thirst were pressing, I roused the men at last, and moved on again, following the course of the ravine upwards. We had not walked more than half a mile when the salt water inlet terminated and the bed of the ravine became thickly wooded. At the moment we gained this point some white cockatoos came soaring upwards from beneath our feet; and, as we knew that this was an infallible sign of the presence of water, we descended again to renew our search for it. WATER DISCOVERED.