However, there is what Dixon C.J. in Braham v. Walker [6] called a "standing controversy" as to the true nature of an option to purchase. One view is that an option to purchase is "a contract for valuable consideration, viz., to sell the property (or whatever the subject matter may be) upon condition that the other party shall within the stipulated time bind himself to perform the terms of the offer embodied in the contract": per Griffith C.J. in Goldsbrough, Mort & Co. Ltd. v. Quinn [7] . The other view is that "an option given for value is an offer, together with a contract that the offer will not be revoked during the time, if any, specified in the option": per Latham C.J. in Commissioner of Taxes (Q.) v. Camphin [8] . This difference of opinion is reflected in the judgments in Carter v. Hyde [9] , where it was held that the personal representatives of the grantee of an option to purchase a lease were, upon giving notice in writing as required by the option, entitled to specific performance of a contract of sale. In that case the option took the form of an offer coupled with a promise not to revoke it [10] . The majority of the Court treated the option as being, in effect, a conditional contract of sale: Knox C.J. said [11] : "In effect it amounts to an agreement by the appellant to sell the lease, &c., for £1,500 to Hyde if within three months the latter signifies his assent to purchase." Higgins J. [12] expressed the same view. Their judgments are consistent with and support the decision in Kennewell v. Dye [13] . The third member of the Court, Isaacs J., took a different view; he said [14] that the words of the document in question placed it "within the category of an offer created by a contract and irrevocable, and not in the category of an instant sale of the property as it then stood, subject to a subsequently performed condition". However, he held that the option created a proprietary right which passed on the death of the grantee to his personal representatives. Higgins J. agreed with this reasoning also; he said [15] : "The position may be regarded in either of two aspects - contract and property; and in either aspect the result is the same, that the executors may sue." However, where it is the grantor, not the grantee, who has died the result may not be the same in either aspect. If there is a conditional contract for sale, the personal representatives of the grantor are bound by it, subject to the qualifications mentioned. If there is no such contract, but the grantee has a proprietary right, it does not necessarily follow that the right is enforceable against the personal representatives of the grantor. If the grant of an option amounts to an offer to sell coupled with a contract not to revoke the offer, the question will arise whether in spite of that contract the offer will lapse on the death of the offeror. In considering this matter, it would be necessary to decide whether an offer lapses upon the death of the offeror, at least if the offeree has notice of the death - a proposition which, as Blackburn J. pointed out in Fong v. Cilli [16] , "has been repeatedly stated in a dogmatic form (for example, by Mellish L.J. in Dickinson v. Dodds [17] ), and is accepted in the textbooks, though it is hard to find a decision on the point" - and if that is true as a general rule whether, as Denning L.J. suggested in Errington v. Errington [18] the position will be different if the offer was one which could not have been revoked during the lifetime of the offeror.