In 1910 in Australian Boot Trade Employees' Federation v. Whybrow & Co. [2] it was unanimously held by a Court consisting of Griffith C.J. and Barton, O'Connor, Isaacs and Higgins JJ., that the Constitution did not authorize the Parliament to confer upon the tribunal constituted under the Act power to declare a common rule in an industry. At that time, and up to 1947, the relevant provision of the Act was contained in s. 38, which provided: - "The Court shall, as regards every industrial dispute of which it has cognisance have power (f) to declare by any award or order, that any practice, regulation, rule, custom, term of agreement, condition of employment or dealing whatsoever determined by an award in relation to any industrial matter shall be a common rule of any industry in connection with which the dispute arises." It is clear, however, that no distinction can be drawn between the present case and Whybrow's Case [2] on the basis of any difference between the language of the old s. 38 (f) and the new s. 41 (1). The reasoning of all the judgments in Whybrow's Case [2] makes it quite plain that it is by reason of its inherent nature that the common rule is held to be outside the constitutional power. That which is actually authorized by s. 41 (1) is exactly the same thing as that which was authorized by s. 38 (f), and it was held that that very thing could not be constitutionally authorized. This was because the constitutional power is limited to conciliation and arbitration between disputing parties, and to make a common rule is to go outside the scope of conciliation and arbitration and to assume a function of general industrial legislation. It was clearly recognized by both Isaacs J. [1] and Higgins J. [2] that it might (to use the words of s. 41) be "necessary or expedient for the purpose of settling an industrial dispute" to make a common rule. But each, like the other members of the Court, rejected the contention that this afforded any reason for saying that a specific function essentially different from conciliation or arbitration was "incidental" to conciliation or arbitration. Isaacs J. [3] said: - "It is not open to the grantee of the power actually bestowed to add to its efficacy, as it is called, by some further means outside the limits of the power conferred, for the purpose of more effectively coping with the evils intended to be met." Then follows a passage which concludes with the well known and often quoted saying that "you may complement, but you may not supplement, a granted power."