creditably; they were volunteers from among the convicts of Cockatoo Island, and were eager to be employed on the expedition. Some of those engaged on a previous trip were included in this expedition. The whole party left Parramatta on November 17th, 1845, and crossed the Bogan on December 23rd, that country being then settled with stations, the result of discoveries made in previous years by the same intrepid explorer. Their journey led them by St. George's Bridge, the present site of the town of St. George, on to the Maranoa River, then entirely unsettled, and this river was followed up towards its source. Touching on the Warrego, discovering Lake Salvator, and passing the present site of Mantuan Downs, they reached the head of Belyando. This was thought at first to be a river likely to lead to the Gulf country, but after following it down nearly to the latitude where a river was described by Leichhardt as joining the Suttor from the westward, Mitchell decided it was a coast river, and so the party returned on their tracks to a depôt camp which had been established on the Maranoa, coming to the conclusion that the rivers of Carpentaria must be sought for much further to the westward. Therefore, continuing their travels in this direction, the Nive River was discovered, and this was thought for a time to be a water leading to the Gulf, but after following it towards the south-east, the party turned northwards, and thus discovered the far-famed Barcoo River, which they thought was the Victoria of Wickham and Stokes. Again high hopes were entertained that at last a river was found that would lead them to the desired end, and that this was a Gulf River. They followed the course through all the splendid downs country, below where the Alice joins it, and found it was going much too far to the south to be a Gulf river, being thus again disappointed in their expectations. Mitchell speaks in glowing terms of the country through which they passed, and named Mount Northampton and Mount Enniskillen, two prominent landmarks. Returning to his party, he took the route home by the Barwon and Namoi, and so back to Sydney, which all reached in safety after an absence of over twelve months. Mitchell's discovery of the Barcoo River was due to a division of his party, and a light equipment, by which he could advance as much as twenty or twenty-five miles a day, and still keep a record of his latitude and progress.