I should perhaps make it clear that it does not necessarily follow from what I have said that an agreement which left further terms to be settled by one of the parties, rather than by his solicitors, would be treated as a concluded contract. In May and Butcher Ltd v The King [3] , Viscount Dunedin suggested that a sale of land which left the price to be settled by the buyer himself would be good. With great respect, it seems to me that there would be no binding contract in such a case, which would fall within the principle that "where words which by themselves constitute a promise are accompanied by words which show that the promisor is to have a discretion or option as to whether he will carry out that which purports to be the promise, the result is that there is no contract on which an action can be brought": Thorby v Goldberg [1] , citing Loftus v Roberts [2] ; Placer Development Ltd v The Commonwealth [3] . It might be suggested that the same principle would not apply if the determination of the price were left to the seller, for then it would be the promisee, not the promisor, who was left with the discretion as to performance. However, in Beattie v Fine [4] , Cussen J. drew no such distinction and held that an option for renewal "at a rental to be agreed upon by the lessor" did not give rise to any contractual obligation. He based his decision on the principle of Loftus v Roberts [5] , but the same conclusion might have been reached by holding that there can be no concluded bargain if a vital matter (such as price or rental) has been left to the determination of one of the parties (see also the dicta in Foster v Wheeler [6] ). Perhaps it may be different where agreement has been reached on all essential terms but the determination of subsidiary matters has been left to one of the parties. In Sweet & Maxwell Ltd v Universal News Services Ltd [7] it was held by the Court of Appeal that an agreement for a lease which was to contain "such other covenants and conditions as shall be reasonably required" by the lessor was sufficiently certain to be a concluded contract for a lease and was capable of specific performance. In Powell v Jones [8] , Bray C.J. went further and upheld the validity of an agreement for a lease which was "to be in terms and to contain such special clauses as the landlord may require". His Honour said [9] that "there is nothing in the Sweet and Maxwell Case [7] to indicate that the Court of Appeal would have held the agreement to make the lease unenforceable if the word "reasonably" had been omitted". I am, with respect unable to agree with that observation, for it seems to me that the members of the Court of Appeal in Sweet & Maxwell Ltd v Universal News Services Ltd [7] placed considerable reliance on the fact that the parties had imported the familiar and objective standard of reasonableness - see [10] . However, it is unnecessary to express any concluded opinion on these matters because, as I have said, in the present case the settlement of the further terms is left to the determination of persons who are not parties to the contract.