¶1delivered the opinion of the court.
¶2There was no error in the refusal of the defendant’s instruction that, “ If there were a special contract and the plaintiff had failed to complete the work, he could not recover.” Where there is a special contract, and the job is to be paid for, the party who has failed to comply, on his part, certainly has no right of action upon the contract, and, in such case, if there be nothing more in the transaction, the express contract excludes any implied contract. It is, however, generally true in morals, that one who is made richer by the act of another, done without any purpose of donation on the part of the latter, and which the former has accepted, ought to recompense the party, at least so far as he himself is a gainer; and the legal doctrine laid down in Britton v. Turner, (6 New Hampshire, 481,) is, we think, a just application of the principle of morality to transactions of this character. When a party is to pay upon a special contract, he is not liable till the money is earned according to the agreement, and the law will not imply a contract different from that which the parties have entered into, except upon some further transaction between them. In case of nonperformance, if the nature of the case be such that the employer can reject what is done, he is entitled to do so, and the *230party performing tbe labor can n t recover any thing ; but if the employer actually receive useful labor and thereby derive a benefit beyond the damage resulting from the breach of the contract, the labor done and the benefit derived from it produce an obligation to pay to the extent of the reasonable worth of the excess ; and this rule is equally applicable, whether the labor was received by the assent of the party before the breach, under a.contract by which, from its nature, the party was to receive the labor from time to time, until the completion of the whole contract, or whether- it was received subsequent to the performance of all which was in fact done.
¶3It did not follow, therefore, in the present case, that the plaintiff could not recover upon the transaction, although there were a failure to complete the special contract, if the defendant accepted the deJ&atéSl^s labor and materials, and was himself a gainer thereby beyond the damage he sustained from the plaintiffs’ breach of the agreement. The judgment is accordingly affirmed.