Australia's next navigator was Captain, subsequently Admiral, Philip Parker King, who carried out four separate voyages of discovery, mostly upon the northern coasts. At three places upon which King favourably reported, namely Camden Harbour on the north-west coast, Port Essington in Arnhem's Land, and Port Cockburn in Apsley Straits, between Melville and Bathurst Islands on the north coast, military and penal settlements were established, but from want of further emigration these were abandoned. King completed a great amount of marine surveying on these voyages, which occurred between the years 1813 and 1822. Captain Wickham in the Beagle comes next; he discovered the Fitzroy River, which he found emptied itself into a gulf named King's Sound. In consequence of ill-health Captain Wickham, after but a short sojourn on these shores, resigned his command, and Lieutenant Lort Stokes, who had sailed with him in the Beagle round the rocky shores of Magellan's Straits and Tierra del Fuego, received the command from the Lords of the Admiralty. Captain Lort Stokes may be considered the last, but by no means the least, of the Australian navigators. On one occasion he was speared by natives of what he justly called Treachery Bay, near the mouth of the Victoria River in Northern Australia, discovered by him. His voyages occurred between the years 1839 and 1843. He discovered the mouths of most of the rivers that fall into the Gulf of Carpentaria, besides many harbours, bays, estuaries, and other geographical features upon the North Australian coasts.