but by possession as "desert and uninhabited". In 1835, a Proclamation by Governor Bourke stated that British subjects could not obtain title over vacant Crown land directly from Aboriginal Australians. In R v Murrel (1836) Justice Burton of the Supreme Court of New South Wales stated, “although it might be granted that on the first taking possession of the Colony, the aborigines were entitled to be recognised as free and independent, yet they were not in such a position with regard to strength as to be considered free and independent tribes. They had no sovereignty.” In the Privy Council case Cooper v Stuart (1889), Lord Watson stated that New South Wales was, "a tract of territory practically unoccupied, without settled inhabitants or settled law, at the time when it was peacefully annexed to the British dominions." In the Mabo Case (1992), the High Court of Australia considered the question of whether Australia had been colonised by Britain on the basis that it was terra nullius. The court did not consider the legality of the initial colonisation as this was a matter of international law and, "The acquisition of territory by a sovereign state for the first time is an act of state which cannot be challenged, controlled or interfered with by the courts of that state." The questions for decision included the implications of the initial colonisation for the transmission of the common law to New South Wales and whether the common law recognised that the Indigenous inhabitants had any form of native title to land. Dismissing a number of previous authorities, the court rejected the "enlarged notion of terra nullius", by which lands inhabited by Indigenous peoples could be considered desert and uninhabited for the purposes of Australian municipal law. The court found that the common law of Australia recognised a form of native title held by the Indigenous peoples of Australia and that this title persisted unless extinguished by a valid exercise of sovereign power inconsistent with the continued right to enjoy native title. Clipperton Island The sovereignty of Clipperton Island was settled by arbitration between France and Mexico. King Victor Emmanuel III of Italy rendered a decision in 1931 that the sovereignty of Clipperton Island belongs to France from the date of November 17, 1858. The Mexican claim was rejected for lack of proof of prior Spanish discovery and, in any event, no effective occupation by Mexico