Plaintiff, employed by defendant to find a purchaser for a stock of goods, found a person who was willing to buy, if real estate which he had was accepted in payment; defendant made a written proposition in which he agreed to accept such real estate in part payment, provided the purchaser, among other things, furnished an abstract showing title in him; the purchaser accepted the offer, but failed to furnish an abstract. Held, that the acceptance was not such as to entitle the plaintiff to his commissions as having found a purchaser able and willing to buy on the terms proposed. Marple v. Ives, 111 Iowa 602, 82 N. W. 1017. See also Secs. 556, 274.