ABSTRACT

Let me first consider mistakes which render a contract a nullity. All previous decisions on this subject must now be read in the light of Bell v Lever Bros Ltd. (The correct interpretation of that case, to my mind, is that, once a contract has been made, that is to say, once the parties, whatever their inmost states of mind, have to all outward appearances agreed with sufficient certainty in the same terms on the same subject matter, then the contract is good unless and until it is set aside for failure of some condition on which the existence of the contract depends, or for fraud, or on some equitable ground. Neither party can rely on his own mistake to say it was a nullity.) From the beginning, no matter that it was a mistake which to his mind was fundamental, and no matter that the other party knew that he was under a mistake. A fortiori, if the other party did not know of the mistake, but shared it. The cases where goods have perished at the time of sale, or belong to the buyer, are really contracts which are not void for mistake but are void by reason of an implied condition precedent, because the contract proceeded on the basic assumption that it was possible of performance. So far as cases later than Bell v Lever Bros Ltd are concerned, I do not think that Sowler v Potter can stand with King’s Norton Metal Co Ltd v Edridge, which shows that the doctrine of French law as enunciated by Pothier is no part of English law. Nor do I think that the contract in Nicholson and Venn v Smith-Marriot, was void from the beginning.