In an action by an agent against the principal for a commission on a real estate deal, it is competent to show the real intentions of the parties as to carrying out the contract by their subsequent dealings in pursuance thereof. Gibson v. Hunt (Iowa Sup. '03), 94 N. W. 277; Howe Banking & Realty Co. v. Bourn, 82 A. 970, 85 Conn. 383; Bunyard v. Farman, 161 S. W. 640, 176 Mo. App. 89; Duff & Conger v. Makley, 175 1ST. Y. Sup. 777;

Chandler v. Gaines-Ferguson Realty Co., 224 S. W. 484, - Ark. Sup. - .