We think the court properly ruled in favor of the plea of res judicata. There was one entire contract between the parties, growing out of the purchase of a soda fount and apparatus, and the serial notes merely evidenced the time and manner of payment. When sued on one of the serial notes, it was proper to give in evidence, under a plea of total or partial failure of consideration, that one or more of the notes had been paid. Crouch v. Spooner, 9 Ga. App. 695 (5), (12 S. E. 61). Likewise, it would be relevant to show that there were other notes outstanding, not yet due or paid. The issue, therefore, on the first trial, was whether the soda fount and apparatus was worth more than the sum which had already been paid, namely, $150. The defendant contended that it was utterly worthless, and asked, not only a return of the amount-paid, but also special damages in the sum of $100. The jury found a verdict in favor of the defendant, without allowing the special damages, thereby adjudicating necessarily one or the other of two things, to wit, that the soda fount and apparatus was worth either $150 or $250, and no more. If the jury believed that the defendant had really suffered the special damages sought to be recouped, and that under the charge of the court such damages could be allowed, then their verdict indicates that the soda fount and apparatus was worth, in their belief, $250, and no more. If no such special damages were allowed, then the verdict indicates that the apparatus was worth the sum already paid, namely, $150, and no more. This was the controversy between the parties, which the jury settled in favor of the defendant.
“A judgment of a court of competent jurisdiction is conclusive between the same parties and their privies, as to all matters put in issue, or which under the rules of law might have been put in issue, in the cause wherein the judgment was rendered.” Civil Code (1910), § 4336. “Any conclusion which the court or jury must evidently have arrived at in order to reach the judgment or *156verdict rendered will be fully concluded.” Kelly & Jones Co. v. Moore, 128 Ga. 683, 686 (58 S. E. 181). However; if the defendant had not pleaded the failure of consideration in the first case, thereby raising the question, the principle of the case of Worth v. Carmichael, 114 Ga. 699 (40 S. E. 797), would have been applicable, and there would have been no estoppel.
The case at bar is very similar in principle to that of Kennedy v. McCarthy, 73 Ga. 346, in which one employed under contract for a year, with salary payable monthly, was discharged during the year, and, at the end of the first month thereafter, sued for the salary of that month. The employer defended on the ground of the incompetency of the employee, and claimed he had a right to discharge him. The jury found a verdict for the plaintiff. Subsequently the employee sued for other months during the year, and the employer sought to interpose the same defense; but the court held that the decision in the first case was conclusive as to the same defense in the second. The only substantial difference between that, case and this one is that here the shoe pinches the other foot. Here the seller held a lot of notes, all of which were parts of the same contract, and all of which were, at his option, due and collectible. He elected to sue merely on some of the notes, and the defendants assert a defense which went to the very heart of the entire contract, and the issue terminated in their favor.
Now, by instituting suit on other notes under the same contract, the plaintiff seeks to reopen the old controversy, and force the defendant again to assert the same defense of failure of consideration. If this could be done, then the plaintiff could have instituted a separate suit on every one of the 35 notes, and thus have forced the defendant to assert and prove the same defense as to every one of thenp The law of res judicata is intended to put an end to litigation, and where one controversy between the same parties has been fully heard on the merits and determined, the matter should be dropped.
There was no error in directing a verdict in favor of the defendant. Judgment affirmed.