Brokers procured purchasers for a mine, who offered one-half cash and their unsecured notes for the balance; these terms were unsatisfactory to the owner, but he agreed with the brokers to sell on these terms if they would wait for one-half of their commissions until the purchase money notes were collected. Held, that the owner owed the brokers the duty to make reasonable efforts to collect the notes as they matured, but the mere failure to bring suit on the notes was not a lack of diligence, in the absence of showing they were insolvent so that the notes could not be collected by suit. Glade v. Ford, 131 Mo. App. 164, I11 S. W. 135.