Where a real estate agent, acting for both parties with their knowledge and consent in an exchange of lands, misrepresented to one of the parties that the other was the owner of a certain farm and rated it at a certain value, when he knew that the real owner was offering to sell for much less, such party was entitled to discharge him as agent, and he was not entitled to any commissions for an exchange of properties thereafter made between the parties. Featherston v. Trone, 82 Ark. 381, 102 S. W. 196; McDonald v. Kimmell, 70 Pa. Super. Ct. - . See also Secs. 313, 435, 451. Compare Sec. 165.