¶1delivered the opinion of the court
¶2This was a suit by plaintiff against the defendant as indorser of three several promissory notes, one of which was a negotiable note and the other two non-negotiable.
¶3The only defense relied on was a former judgment on demurrer, rendered in a suit between the same parties in the Kansas City Court of Common Pleas. In the latter suit the defendant demurred to the plaintiff’s petition, and alleged as causes of demurrer certain defects in the petition, and this demurrer was sustained and a final judgment rendered on the demurrer in favor of the defendant. The cause was submitted to the court, and the court decided that the former judgment was a bar to this suit.
¶4It is a well-established principle that where a matter has been once adjudicated on its merits, in a suit between the same parties or their privies, such adjudication is a complete bar to another action. (See Thompson v. Wineland, 11 Mo. 244; 1 Greenl. Ev., §§ 522-3; 11 Mass. 445; 2 Johns. 210; 8 Johns. 383; 9 Johns. 232; 14 Johns. 377.)
¶5But the principle is equally well settled that where the former adjudication was not on the merits, it forms no bar to another action. The merits of this case were not touched by the first judgment. The court did not pretend to decide anything except that the plaintiff’s petition was defective. Whether that decision was right or wrong, it is unnecessary now to inquire. It is sufficient to say that such an adjudication is no bar to another action between these parties. (See Lepping and Kedgewin, 1 Mod. 207; *231Bell v. Hoagland, 15 Mo. 360; 12 Mo. 103; 10 Pet. 299; 12 Curtis, 130-3; 21 Ind. 190; 1 Blackf. 56; 6 Blackf. 56.)
¶6Let the judgment be reversed and the cause remanded.