In an action by a real estate broker for commissions, wherein one defendant filed a separate plea denying that he was justly liable with his co-defendant, evidence was admissible by the broker as to various trips made by him with his co-defendant around the country for the purpose of selling lands, and the action of the defendant denying joint liability therewith, as was also evidence by another of ,a purchase by him of land from defendants jointly, as tending to show the relation of defendants and that they held themselves out as partners. Mc-Cann v. Meyer, 232 I11. 507, 83 N. E. 1042.