The appellant, however, contends that these principles have no application in the circumstances of the present case. As I understand it the argument is based primarily upon the assertion that the District Court was exercising federal jurisdiction in entertaining the appellant's action and that, therefore, these principles do not apply. I confess to considerable difficulty in seeing that even if this were so the appellant would be entitled to succeed but I shall return to this aspect of the case at a later stage. The contention that the District Court was exercising federal jurisdiction proceeds from the proposition that the appellant's initial right of action was the creature of a law made by the Parliament of the Commonwealth, that his claim for damages, therefore, answered the description of a matter "arising under any laws made by the Parliament" (The Constitution, s. 76 (ii.)) and that the effect of s. 39 (2) of the Judiciary Act was to invest the District Court of the Metropolitan District with jurisdiction in that matter. The plaintiff's right was said to arise under the Seat of Government Acceptance Act 1909-1938, s. 6 (1) of which provided that subject to that Act, all laws in force in the Territory immediately before the proclaimed day should, so far as applicable, continue in force until other provision was made. The operation of this section was not relevantly affected by s. 3 of the Seat of Government (Administration) Act 1910-1947 and it is contended that it was by virtue of the earlier provision, as modified by cl. 15 of the Ordinance, that the appellant's claim was actionable in the Australian Capital Territory. The effect of s. 6 (1) of the Seat of Government Acceptance Act was to continue in force in the Territory all laws which were in force there before 1st January 1911 and it is necessary to determine with some degree of precision what the previous relevant law was. It was, in substance, a law which vested in a person injured by the negligence of another a right to recover damages unless it was proved that he had been guilty of contributory negligence. But this right was one which immediately prior to 1st January 1911 could be enforced only in the courts of New South Wales. The courts of New South Wales, however, in 1911, ceased to have the jurisdiction which they had formerly exercised in relation to the territory which had become the Australian Capital Territory and, after 1st January 1911, they exercised jurisdiction there only to the extent provided by the laws of the Territory. As far as the jurisdiction formerly exercised by the Supreme Court of New South Wales was concerned, s. 8 of the Seat of Government Acceptance Act 1909 provided that until the Parliament should otherwise provide, the High Court and the Justices thereof should have, within the Territory, the jurisdiction which immediately before 1st January 1911 belonged to the Supreme Court of the State and the Justices thereof. Further provision was made by s. 30B of the Judiciary Act 1927 which enacted that the High Court should have, in relation to the Territory for the Seat of Government, the same original jurisdiction, both civil and criminal, as immediately before 1st January 1911 the Supreme Court of the State of New South Wales had in relation to that State. This section was repealed in 1933 by the Seat of Government Supreme Court Act. This Act created the Supreme Court of the Australian Capital Territory and vested in it the same original jurisdiction, both civil and criminal, as immediately before 1st January 1911, the Supreme Court of the State of New South Wales had in relation to that State. As for inferior courts provision was made by s. 11 of the Seat of Government (Administration) Act 1910 for the exercise of jurisdiction by the courts of the State subject to any Ordinance made by the Governor-General and in 1940 the Court of Petty Sessions Ordinance, which made provision for the establishment of Courts of Petty Sessions within the Territory, provided that the jurisdiction, conferred by s. 11 of the Seat of Government (Administration) Act on the several inferior courts of the State of New South Wales, should, by force of the Ordinance, be determined.