And I think the practice has always been for a Court of Equity to give this relief whenever, by the exercise of its powers, it can do what is practically just, though it cannot restore the parties precisely to the state they were in before the contract.
In using the expression "what is practically just", Lord Blackburn may well have adapted the language of Lindsay Petroleum Co v Hurd [21] referred to in his judgment. There the Privy Council considered the operation of laches where "it would be practically unjust to give a remedy" [22] . And in a contemporary edition of Story's Commentaries on Equity Jurisprudence, in the context of rescission and specific performance, it was said [23] :
[T]he interference of a court of equity is a matter of mere discretion And in all cases of this sort the court will, in granting relief, impose such terms upon the party as it deems the real justice of the case to require The maxim here is emphatically applied, - He who seeks equity must do equity.
1. (1878) 3 App Cas 1218.
2. Erlanger (1878) 3 App Cas 1218 at 1278-1279.
3. (1874) LR 5 PC 221.
4. Lindsay Petroleum (1874) LR 5 PC at 239, referred to by Lord Blackburn in Erlanger (1878) 3 App Cas 1218 at 1279.
5. Story, Commentaries on Equity Jurisprudence, as Administered in England and America, 12th ed (1877), vol 1, par 693.