On the 16th of May, he first encountered a new kind of scrub, which is now known as Stuart's hedgewood. It spreads out in many branches from the root upwards, interlacing with its neighbours on either side, forming an impervious hedge. On the 23rd, he found the magnificent sheet of water, which he called Newcastle Waters, and which at first seemed to promise him good assistance in getting to the north, but it proved delusive. Beyond the Newcastle he could not advance his party at all; north, north-cast, and north-west, it was all the same endless grassy plains, terminating in thick scrubby forest, until at last he had again to give up hope, and return to Adelaide. Such, however, was the confidence of the authorities in him, and such his own energy, that in less than a month he was on his way to Chambers' Creek, to make preparations for a fresh start. His last journey had proved the existence of a long line of good country, fairly well-watered, and although beyond it he had not been able to proceed, still, there was no knowing what a fresh trial might bring forth. He had, at any rate, brought back his party in safety, with the loss of only a few horses; and in no way deterred by the fate of the Victorian explorers, he started once more, this time destined to meet with success. CHAPTER X. Stuart's last Expedition--Frew's Pond--Daly Waters--Arrival at the Sea--The flag at last hoisted on the northern shore--Return--Serious illness of the Leader--The Burke relief Expedition--John M'Kinlay--Native rumours--Discovery of Gray's body--Hodgkinson sent to Blanche Water with the news--Returns with the information of King's rescue by Howitt-- M'Kinlay starts north--Reaches the Gulf coast--Makes for the new Queensland settlements on the Burdekin--Reaches the Bowen River in safety--Mystery of the camel's tracks--Landsborough's expedition-- Discovery of the Gregory River--The Herbert--Return to the Albert depôt-- News of Burke and Wills--Landsborough reduces his party and starts home overland--Returns by way of the Barcoo--Landsborough and his critics--His work as an Explorer--Walker starts from Rockhampton--Another L tree found on the Barcoo--Walker crosses the head of the Flinders--Finds the tracks of Burke and Wills--Tries to follow them up--Returns to Queensland--Abandonment of the desert theory--Private expeditions-- Dalrymple and others. On leaving the settled districts, Stuart followed his old track, now so familiar to him, until on the 14th April, 1862, we find him encamped at the upper end of Newcastle Waters, once more about to try to force a passage through the forest of scrub to the north. On the second day he was partly successful, finding an isolated waterhole, surrounded by conglomerate rock. This he called Frew's Pond, and it is now a well-known camping place on the overland telegraph line.