Plaintiffs, real estate agents, were to receive certain commissions for services in securing a lessee for defendant upon agreed terms, and they procured an informal agreement for a lease to be signed by defendant and the applicant for the lease. Held, That to defeat an action by plaintiff for commissions defendant might show by parol that the contract was merely provisional, and did not express all the terms of the lease to be entered into by the parties, and that the lease was never consummated, because no final agreement was ever made between the defendant and the proposed lessee. Buxton v. Beal, 49 Minn. 230, 51 N. W. 918; Laws v. Schmidt, 80 Ohio St. 108, 88 N. E. 319.