It may be that in formulating the doctrine there was an unwillingness to be misled by "the way in which the human mind tries, and vainly tries, to give a particular subject matter a higher degree of definition than it will admit" (cf. per Lord Porter in The Commonwealth v. Bank of New South Wales [1] ). Be that as it may, no formulation exists which will at once solve the present question. In George Hudson Ltd. v. Australian Timber Workers' Union [2] the doctrine was foreshadowed by Isaacs J. in terms more figurative than exact. But at the expense of not a little repetition it will be as well to quote the following sentences from the judgment of Starke J. in the Burwood Cinema Case [3] : "It is clear that absolute definiteness of the individuals engaged in the dispute cannot be essential, for in industrial disputes, claims and demands are usually made for the benefit of "the ever changing body of workmen that constitute the trade" " [4] . (The last words are taken from the judgment of O'Connor J. in Jumbunna Coal Mine N.L. v. Victorian Coal Miners' Association [5] .) "The nexus is to be found in the industry or in the calling or avocation in which the participators are engaged Associations of large bodies of men are, however, defective in legal personality, and it is expedient, at least for the purposes of legal representation, and probably also for the purposes of "collective bargaining" that they should be organized in some form Such organisations, to my mind, "represent and stand in the place of their members" and must, to be effective, have "right and authority to act on their account" " [6] . Speaking of certain earlier decisions of the Court and giving reasons why they were no longer to be followed, Starke J. said: "The basis of these decisions is, in my opinion, the doctrine of agency and not the principle of representation" [7] . His Honour concluded thus: "An organization registered under the Arbitration Act is not a mere agent of its members: it stands in their place, and acts on their account and is a representative of the class associated together in the organization. It is, as my brother Higgins said, "a party principal," and "not a mere agent or figurehead". The acts and conduct of its members are relevant, no doubt, upon the question whether the dispute submitted to the court by the organization or referred to it by other means is real or illusory, but otherwise their acts and conduct are immaterial" [8] .