Lord Denning hoped a right of action at common law could be found for a third party by looking behind Tweddle v. Atkinson [2] . This hope has proved unfounded. In Coulls's Case [3] , I gave my reasons for thinking that on historic grounds it was, regrettably, doomed to fail. That does not mean that the present doctrine was always firmly established. It was not, as Dixon J. recognized in Birmingham v. Renfrew [1] . But it is now firmly established and it binds us. It is not however a rule which is necessarily inherent in the idea of contract. It is true that it accords with the classical Roman law, although not with the modern civil law of France or Germany: see Ryan, An Introduction to the Civil Law, pp. 67-71. It is not accepted in Scots' law. And, most importantly, it has been modified or abandoned in very many jurisdictions in the United States. This means that many American decisions on novation, although based on the common law, can provide little guidance for us. But it does perhaps offer some hope that what Lord Denning could not accomplish by looking back to the past may yet be accomplished, as Lord Reid has hinted, by looking to the future. It may be that their Lordships in the House of Lords could use the law's inherent capacity for growth, as displayed in America in this field, undeterred now by their own previous decisions and by "Parliamentary procrastination": see Beswick v. Beswick [2] . And it may be that someday this Court too, expounding the common law as Australia has inherited it, will see the way clear to take the same path. But, for the present time at all events, decisions of high authority stand directly in the way. We must take the law as it is and refuse to recognize a ius tertii arising by way of contract. In jurisprudence and legal theory and for recent commentators, this may be seen as a regrettable example of the rigidity of conceptual thinking. Doubtless the common law of contract is developing in England, and along parallel lines here, by the application of old principles in new situations. But we cannot yet go further than the decisions in In re Schebsman; The Official Receiver v. Cargo Superintendents (London) Ltd. and Schebsman [3] and Beswick v. Beswick [4] in England and Coulls's Case [5] here can carry us. However, for present purposes that is far enough. We are not concerned with speculative problems of legal theory and ultimate analysis, but with a practical question, the destination of money now held in the Supreme Court of South Australia. If, as I think, the right view of the facts is that, by novation of its contract with Dyson, the company became bound to him to pay Mrs. Dyson, then the only way in which it could perform its obligation to him would be by paying her. Of course by a further novation this contract could have been cancelled by the parties to it and another new arrangement made in substitution for it. But that has not occurred. Two sentences, out of many that are pertinent in the judgments in In re Schebsman [1] are peculiarly apposite at this point. Lord Greene M.R. said [2] :