Examination of the provisions of the Act discloses that the Commissioner is an instrumentality of the State of Queensland through which the executive government of the State discharges an important part of its governmental functions. It has long been recognized in this Court, as indeed it was recognized by the Constitution itself (see, e.g., s. 51(xxxii), (xxxiii) and (xxxiv) and s. 102), that the conduct of railways is, as a matter of history, an established and "very large and important part" of government in this country: Federated Amalgamated Government Railway and Tramway Service Association v. N.S.W. Railway Traffic Employees' Association [41] , and see also Bradken Consolidated Ltd. v. Broken Hill Proprietary Co. Ltd. [42] . In each of the federating colonies, "the actual administration of the railways was entrusted to a body specially constituted under State law for the purpose, but the revenue from the railways was State revenue, and the obligations incurred by their managers were State obligations": N.S.W. Railway Traffic Employees' Association Case [43] . This position continues in Queensland. Under the Act, the Commissioner is an instrumentality, agent or authority of the Crown in right of Queensland: see Bradken Consolidated Ltd. [44] . While the Act "does of course leave the Commissioner with some discretionary powers, in many important respects it subjects him to direct control either by the legislature (e.g., ss. 33-35), the Governor in Council (e.g., ss. 38, 42A, 71, 75A, 75B and 128) or the Minister (e.g., ss. 94, 95, 97)": per Gibbs A.C.J., Bradken Consolidated Ltd. [42] and see also s. 6(2) of the Act. All moneys payable to the Commissioner "shall be collected and received by him on account of and shall be paid into the Consolidated Revenue" (s. 99). The contracts of the Commissioner are of no force or effect unless and until ratified by the Minister (s. 95(1)). The funds of the Commissioner must be appropriated by Parliament from Consolidated Revenue: see, e.g., ss. 93, 94) and the Financial Administration and Audit Act 1977 Q. and any other Queensland Act relating to the collection and payment of public moneys and the audit of the public accounts are made generally applicable to the Commissioner and to all employees under the Act (s. 99). To borrow from words used in judgments in this Court in Bank of N.S.W. v. The Commonwealth ("the Banking Case") [45] and in Inglis v. Commonwealth Trading Bank of Australia [46] , the intention of the Parliament of Queensland as evidenced by the Act was "to transmute a part" of the Government of the State "into the outward form of a corporation as a convenient means of carrying on" a traditional government activity with the result that when the Commissioner is sued, as in the present case, he is "sued as being the emanation by which" the State of Queensland discharges its governmental activities in relation to railways.