In the early history of Victoria the Lady Nelson occupies a niche somewhat similar to that which the Endeavour fills in the annals of New South Wales, but while Cook and the Endeavour discovered the east coast and then left it, the Lady Nelson, after charting the bare coast-line of Victoria, returned again and again to explore its inlets and to penetrate its rivers, her boats discovering the spacious harbour at the head of which Melbourne now stands. The Lady Nelson also went northward as well as southward, and though many of her logbooks are missing, some survive, and one describes how, in company with the Investigator under Captain Flinders, she examined the Queensland shore as far as the Cumberland Islands. Later she accompanied the Mermaid, under Captain King, to Port Macquarie when he followed Flinders' track through Torres Strait, and during her long period of service she visited different parts of the coast, including Moreton Bay, Port Essington, and Melville Island. Precisely how many voyages she made as a pioneer will probably never be known. The ship, at least, played many parts: now acting as King's messenger and carrying despatches from the Governor to Norfolk Island; now fetching grain grown at the Hawkesbury, or coals from Newcastle for the use of the increasing population at Sydney; and at another time carrying troops and settlers to the far distant north. She made other memorable voyages; for example, when she conveyed bricks burnt in Sydney brick kilns to Tasmania and to New Zealand, in order to build homes for the first white settlers in those lands. She helped also to establish Lieutenant Bowen's colony at Risdon. On that occasion we read that the little ship lent the colony a bell and half a barrel of gunpowder. The logbooks do not record to what use the bell was put, but whether it served as a timekeeper or to call the people to worship, it was doubtless highly valued by the early Tasmanian colonists. At the time of her sailing to Australia the Lady Nelson was a new ship of 60 tons. She was built at Deptford in 1799, and differed from other exploring vessels in having a centre-board keel. This was the invention of Captain John Schanck, R.N., who believed that ships so constructed "would sail faster, steer easier, tack and wear quicker and in less room." He had submitted his design to the Admiralty in 1783, and so well was it thought of that two similar boats had been built for the Navy, one with a centre-board and one without, in order that a trial might be made. The result was so successful that, besides the Cynthia sloop and Trial revenue cutter, other vessels were constructed on the new plan, among them the Lady Nelson. She was chosen for exploration because her three sliding centre-boards enabled her draught to be lessened in shallow waters, for when her sliding keels were up she drew no more than six feet.