This trip of Mitchell's led to the appointment of his second in command, Mr. E. Kennedy, to return and discover where the Victoria or Barcoo really went to, and to obtain further information of the mysterious interior of the great Australian continent, and its peculiar river system. Mitchell was famous for his exploring trips in the southern part of Australia, and his two volumes of explorations remain a classic in literature. His account of Australia Felix and the Werribee are most interesting. Mitchell invariably traversed his route with compass and chain, so that his positions can always be verified. * * * * * Edward Kennedy, who was second in command under Sir T. L. Mitchell when the Barcoo was discovered, was appointed to lead a party to the same districts in 1847. He followed down the Barcoo to where a large river came in from the north, which he named the Thomson, after Sir E. Deas Thomson, of Sydney. The Barcoo he identified with Mitchell's Victoria, which at a lower stage is called Cooper's Creek. Kennedy intended to go to the Gulf of Carpentaria, but the blacks removed his stock of rations left at the Barcoo, and so he decided to return to Sydney by way of the Warrego, Maranoa, Culgoa, and Barwon Rivers. * * * * * The Gregory brothers had successfully conducted several exploring expeditions in West Australia before entering on those journeys in North Queensland that have helped to make known its north-eastern parts. A letter from the Secretary of State for the Colonies, the Duke of Newcastle, to the Governors in Australia, was received, in which it was recommended that an expedition should be organised for the exploration of the unknown interior of Australia, stating that a sum of £5,000 had been voted by the Imperial Government for the purpose, and suggesting that Mr. A. C. Gregory should be appointed to the command, and Brisbane be the point of departure. The expedition was to be conveyed by sea to the mouth of the Victoria River, on the northern coast of Australia. It was to be an Imperial expedition, paid for by the Imperial Government, for the purpose of developing the vast and unknown resources of the continent. It was called the North Australian Exploring Expedition. The preliminary arrangements having been completed, the stores, equipment, and a portion of the party were embarked at Sydney on the barque "Monarch," and the schooner "Tom Tough," and sailed for Moreton Bay on July 18th, 1855, arriving at the bar of the Brisbane River on the 22nd. The horses and sheep were collected at Eagle Farm by Mr. H. C. Gregory, and shipped on board the "Monarch" on July 31st. After some difficulties in getting over the bar and obtaining the necessary supply of water at Moreton Island, the expedition may be said to have started on its responsible task on August 12th, 1855.