Where a petition alleged that plaintiffs were employed to sell defendant's land, that they were to have all they could obtain for it over a certain sum, and that they offered it to one who purchased it of defendant for that sum, they could not recover the reasonable value of their services on an implied contract on the ground that the defendant had accepted the benefit of their services; and plaintiffs could not recover of defendant for breach of an agreement that he would ask the sum fixed by the brokers of any customer who came to him, where the complaint did not allege such a contract. Ames v. Lamont, 107 Wis. 531, 83 N. W. 780.