next governor, George Gawler, arrived via Kingscote KI, on 12 October 1838, aboard from London. The first sheep and other livestock in South Australia were brought in from Tasmania. Sheep were overlanded from New South Wales from 1838, with the wool industry forming the basis of South Australia's economy for the first few years. Vast tracts of land were leased by "Squatters" until required for agriculture. Once the land was surveyed it was put up for sale and the Squatters had to buy their runs or move on. Most bought their land when it came up for sale, disadvantaging farmers who had a hard time finding good and unoccupied land. Farms took longer to establish than sheep runs and were expensive to set up. Despite this, by 1860 wheat farms ranged from Encounter Bay in the south to the Clare Valley in the north. The city was intended to develop around the central Victoria Square, with the intersecting Grote and King William Streets planned as extra wide to allow for future development. Instead, development concentrated around two of the narrowest streets on the city plan, Rundle and Hindley Streets, due to their proximity to the city's water supply and to Port Road, which led directly to the port. Many empty blocks remained until the late 19th century. Gawler Adelaide's second Governor was Colonel George Gawler who arrived in October 1838 to a situation of almost no public finances, underpaid officials and 4,000 immigrants still living in makeshift accommodation. He was allowed a maximum of £12,000 expenditure a year, with an additional £5,000 credit for emergencies, but was given the impression by the Colonial Office back in London that self-sufficiency of the colony was of minor importance and that government support should be relied upon. Gawler's first goal was to address delays over rural settlement and agriculture. He persuaded Sturt in New South Wales to work for him as surveyor-general, overseeing the surveys himself in the meantime. He appointed more colonial officials with higher wages, set up a police force and took part in explorations of the surrounding terrain. A governor's house, jail, police barracks, hospital, and customs house and wharf at Port Adelaide were built, as well as houses for public officials and missionaries, and outstations for police and surveyors. The land boom eased after 1839; cash and credit were scarce, explorations indicated limited good land, and British speculators became