“…Fry J. said as follows: “The equitable doctrine of acquiescence is founded on there having been a mistake of fact; can it be repelled by showing that there was constructive notice of the real facts? In every case in which a man acts under the mistaken belief that he is entitled to land, he might, if he had inquired, have found out that he had no title. And yet the Courts appear always to have inquired simply whether a mistake has been made, not whether the plaintiff ought to have made it.” The learned judge confirmed that remark in his judgement (at p. 106) where he said this: “But, in my judgement, when the plaintiff is seeking relief, not on a contract, but on the footing of a mistake of fact, the mistake is not the less a ground for relief because he had the means of knowledge.”