The peculiar nature of a contract for the sale of land, and in particular the opportunity given to the purchaser of investigating the title and his right to rescind the contract if the vendor fails to show a good title and his alternative right if he so chooses to accept such title as the vendor has, and complete the contract either with or without compensation, places a contract for the sale of land in a special category. Upon the execution of the conveyance the rights and obligations of the parties under the contract are merged in the conveyance except in so far as the contract provides expressly or impliedly that merger shall not take place - for instance where it is intended that a right to compensation given by the contract may be exercised even after completion: Knight Sugar Co. Ltd. v. Alberta Railway & Irrigation Co. [1] . As a result the rights of a purchaser against the vendor, apart from those which arise under covenants for title, for quiet enjoyment etc. included in the conveyance itself or implied by statute, are very limited. It is clear that a contract for the sale of land cannot be set aside on the ground that the purchaser was induced to enter into it by an innocent material misrepresentation or on the ground that the vendor has innocently concealed some defect of title after completion has taken place. Actual fraud must be proved. A reference to a few of the many cases where this has been said will suffice: Wilde v. Gibson [2] ; Brownlie v. Campbell [3] ; Soper v. Arnold [4] ; (affirmed [5] ); Public Trustee v. Duchy of Lancaster [6] . The finality of the transaction after conveyance has been emphasised in many cases. See for instance Clare v. Lamb [7] ; Allen v. Richardson [8] ; Joliffe v. Baker [9] . It may be possible in exceptional cases to obtain relief on the ground of common mistake after a contract for the sale of land has been completed. But the cases must be very rare. They are unlikely to go beyond cases where there has been a total failure of consideration. One case is where it is found, after completion, that the purchaser and not the vendor is the owner of the land so that the purchaser is really paying for his own property. In Bingham v. Bingham [10] the plaintiff had contracted to purchase land from the defendant, to which the defendant had no title although he believed that he had, which was the property of the plaintiff. The defendant conveyed the land to the plaintiff by deed of lease and re-lease. It was contended that it was the plaintiff's own fault as the title deeds had been produced to him and he had had time to examine the title and the maxim caveat emptor applied. But it was held that there was a plain mistake and a court would not suffer the defendant to run away with the money in consideration of the sale of an estate to which he had no right. This was a case where the mistake was so fundamental that there was a total failure of consideration. The plaintiff had paid to the defendant the purchase money for land which was the property of the plaintiff. In Cooper v. Phibbs [1] there was also a total failure of consideration. The plaintiff had agreed to lease a fishery of which he was, unknown to him, the tenant for life from the defendant who had no title at all to the property. In Seddon v. N. E. Salt Co. Ltd. [2] Joyce J., after referring to Wilde v. Gibson [3] ; Brownlie v. Campbell [4] ; Soper v. Arnold [5] and Kennedy v. Panama, New Zealand & Australian Royal Mail Co. (Ltd.) [6] ; held that the court will not grant rescission of an executed contract for the sale of a chattel or chose in action on the ground of an innocent misrepresentation. This principle was applied to an executed lease by the Divisional Court in Angel v. Jay [7] and by Devlin J. in Edler v. Auerbach [8] . In Solle v. Butcher [9] , however, decided six weeks later, the Court of Appeal by a majority (Bucknill L.J. and Denning L.J., Jenkins L.J. dissenting) held that an executed lease can be set aside on the ground that the parties were induced to enter into it by a common mistake. Denning L.J. said that "The fact that the lease has been executed is no bar to this relief. No distinction can, in this respect, be taken between rescission for innocent misrepresentation and rescission for common misapprehension, for many of the common misapprehensions are due to innocent misrepresentation; and Cooper v. Phibbs [1] shows that rescission is available even after an agreement of tenancy has been executed and partly performed. The observations in Seddon v. North Eastern Salt Co. Ltd. [2] have lost all authority since Scrutton L.J. threw doubt on them in Lever Bros. Ltd. v. Bell [10] and the Privy Council actually set aside an executed agreement in Mackenzie v. Royal Bank of Canada [11] . If and in so far as Angel v. Jay [7] decided that an executed lease could not be rescinded for an innocent misrepresentation, it was in my opinion, a wrong decision. It would mean that innocent people would be deprived of their right of rescission before they had any opportunity of knowing they had it. I am aware that in Wilde v. Gibson [3] Lord Campbell said that an executed conveyance could be set aside only on the ground of actual fraud; but this must be taken to be confined to misrepresentations as to defects of title on the conveyance of land" [12] . In Leaf v. International Galleries [13] , however, both Evershed M.R. and Jenkins L.J. reserved their opinions whether Seddon v. N. E. Salt Co. Ltd. [1] was wrongly decided. We should certainly reserve our opinion on this point as it does not arise directly in the present case. In the case of the sale of land at any rate, relief has never been given on the ground of innocent misrepresentation after the contract has been executed and it is difficult to see why common mistake, unless it leads to a total failure of consideration, should be in any different position. There are dicta in the cases that relief can be given after the contract has been completed where there is a common mistake upon a material point although there is only a partial failure of consideration: Jones v. Clifford [2] ; Bettyes v. Maynard [3] ; Debenham v. Sawbridge [4] . But the proper principle appears to be that, in the case of a completed contract of sale, rescission is only possible on the ground of common mistake where, contrary to the belief of the parties, there is nothing to contract about as in Bingham v. Bingham [5] and Cooper v. Phibbs [6] . Contracts for the sale of personal property have been said to be void for mistake where the property has ceased to exist at the date of the contract. Instances of such contracts will be found in the speech of Lord Thankerton in Bell v. Lever Bros. Ltd. [7] . In Scott v. Coulson [8] (affirmed [9] ) both parties supposed the assured to be alive whereas he was dead. In Couturier v. Hastie [10] the cargo sold was held not to have existed at the date of the sale. In Strickland v. Turner [11] the annuitant was in fact dead at the date of the sale of the annuity. These are all cases where the subject matter was not in existence at the date of the sale. But even in these cases the contract is probably not void but merely unenforceable. The one party is unable to supply the very thing that the other party contracted to take and therefore the contract is unenforceable by the one if executory, while if executed the other can recover back money paid on the ground of total failure of consideration: McRae v. Commonwealth Disposals Commission [12] . But it would be hard to find an analogous example in the case of land because land does not cease to exist unless one can take the somewhat fanciful example suggested by Richards C.B. in Hitchcock v. Giddings [13] of an estate swept away by a flood. In Bettyes v. Maynard [1] Kay J. referred to Earl Beauchamp v. Winn [2] as a case of a completed contract but, with all respect to that learned judge, the transaction does not appear to have proceeded beyond a contract for the exchange of two properties. In Solle v. Butcher [3] Denning L.J. referred to the Privy Council setting aside an executed agreement in MacKenzie v. Royal Bank of Canada [4] but, with all respect to that learned judge, the Privy Council does not seem to have done more than set aside a contract of guarantee on the ground of a material misrepresentation of fact. Shares were hypothecated to the bank as security for the performance of that contract but the rights of the parties depended on the guarantee and therefore rested in the contract. Neither of these cases appears really to support the conclusion that an executed contract for the sale of property can be rescinded for innocent material misrepresentation or for material common mistake. The only authority for that principle appears to be the decision of the majority of the Court of Appeal in Solle v. Butcher [5] and from the scope of that decision completed contracts for the sale of land are carefully excluded. All that Scrutton L.J. said about Seddon v. North Eastern Salt Co. Ltd. [6] in Lever Bros. Ltd. v. Bell [7] was that he reserved liberty to consider the decision so far as it decides that executed contracts cannot be rescinded for innocent and material misrepresentation. He did not seriously examine its correctness. The decision of the Court of Appeal was reversed on appeal by the House of Lords so that it is difficult to see why the observations of Joyce J. in Seddon's Case [6] should have lost all authority simply because Scrutton L.J. threw doubt upon them. In Legge v. Croker [8] Manners L.C. held that an executed lease could not be set aside on the ground that the lessee had been induced to enter into it by a material but innocent misrepresentation. This decision seems to be in conflict with that of the Court of Appeal in Solle v. Butcher [5] yet Legge v. Croker [8] which was followed in Angel v. Jay [9] received the approval of Lord Selborne L.C. in Brownlie v. Campbell [10] . At least it can be said that in the case of a sale of land nothing has occurred to throw doubt on the statement of Cozens Hardy J., as he then was, in In re Tyrell; Tyrell v. Woodhouse [11] that "counsel have not been able to discover a single instance of setting aside a purchase after conveyance except because of fraud or total failure of consideration as in Bingham v. Bingham [1] and Hitchcock v. Giddings [2] . In Jones v. Clifford [3] the court carefully guarded against deciding anything on this point. If I were to say mutual mistake, not being an error in the substance of what was purchased, justified rescission, every purchaser would be applying to get his purchase set aside. I am not prepared to be the first to give such a decision, and my own view is that there is no jurisdiction to set aside the purchase" [4] . In the present case there was at most a partial failure of consideration. The defendants have been able to convey the whole of the land comprised in conveyance No. 176, book 221 on which a large part of the hotel is erected, to give the plaintiff vacant possession of the hotel and the licence has been transferred to him. The contract between the parties was never void. It was at most liable to be set aside in equity not on the ground of mistake but for failure by the vendors to show a good title. A vendor need not have a good title at the date of the contract, it is sufficient if he can show that he can make title at the proper time for completion. A vendor can enter into a valid contract to sell land although he has no title at all. If he can enter into such a contract when he knows that he has none, how can it be said that the contract is void if he mistakenly believes that he has a good title? The purchaser can waive, if he chooses, all objections to the title and compel the vendor to execute a conveyance of the land even if he has no title to it at all. The purchaser may think it worth his while to complete the purchase simply to obtain vacant possession of the land taking his chance of it ripening into a possessory title in the future, or he may be prepared to take the chance of the vendor acquiring a good title in the future in which case equity would compel the vendor to make good his promise to convey the land to the purchaser when he subsequently acquired it. "A graft into the old stock" as the Master of the Rolls called it in Seabourne v. Powel [5] as long ago as 1686. The principle is stated in Smith v. Osborne [6] .