In an action for commissions claimed to have been earned by purchasing land for defendant, where defendant claimed that plaintiff received a commission from the seller of the tract in violation of his relations as agent, which commission plaintiff claimed was received for defendant's benefit and by his authority, evidence was admissible of the employment and the extent of the authority of another employed by defendant to assist the plaintiff in securing the option, who, by plaintiff's direction, communicated to defendant the proposed terms for the purchase of the tract in question, but the compensation he was to receive from defendant was immaterial. Mahon v. Rankin (Ore. Sup. '09), 102 P. 608; Long-Lewis Hardware Co. v. Ewing, 62 S. 341, 8 Ala. App. 657.