delivered the opinion of the court.
In 1921 the defendant Welfenberg owned a tract of land adjoining the town of Petersburg in Arapahoe *593 county on which, he was operаting á fish farm. He and Eichard Oppenlander and one "Williams organized a corporation, the Colorado Troiit Fisheries, Inc., the рlaintiff herein, to take over this property and continue such business thereon in the corporate name. Conveyancе of the land was made by Welfenberg to the corporation, the capital stock of which was divided between the three, оne-third to each. There were about thirty acres in the tract which Welfenberg then owned. The land conveyed by this deed, acсording to its description, included not only the land which Welfenberg then owned, but also a two acre tract at the extreme southerly end of this land, which he did not then own. The deed of conveyance was a warranty deed with the usual covenants in an instrument of that character. Two years or more thereafter Welfenberg acquired the two acre tract mentioned by a warranty deеd from the owner. Thereafter Welfenberg conveyed the same to a third person subject to a trust deed thereon. The plaintiff brought this action against Welfenberg, his later grantee, and the holder of the incumbrance, to have such deed cancelled and to have set aside the incumbrance,. which the grantee had placed upon the two acre tract. The defendаnts answered alleging, among other things, that the two acre tract in question, which Welfenberg did not own at the time he included the same by dеscription in his deed to the Fisheries Company, was by a mistake both of himself and his grantee, included therein and he prayed for a reformation of the deed on that ground. Upon issues joined the trial court made findings for the defendant Welfenberg and the other defеndants,- holding that the mistake mentioned was mutual and entered a decree reforming Welfenberg’s deed to the Fisheries Company so as to exclude the two acre tract. The plaintiff Fisheries • Company is here with this writ.
Two principal assignments of error, and the оnly ones necessary to consider, are: (1) That the court erred in *594 overruling plaintiff’s motion for judgment on the pleadings; (2) that the findings and decree of the court are contrary to the law and the evidence.
1. Plaintiff’s motion for judgment on the pleadings is based upon its misconception that the answer does not allege that the mistake in question was mutual and, therefore, this instrument could not properly have been can-celled or reformed because a unilateral mistake does not invoke equitable jurisdiction in such cases. There is no merit in this contention. The answer itself specifically alleges, and the court found, that the two acrе tract in controversy here was inserted in the description of the Welfenberg deed to the Fisheries Company as the result of а mistake of both parties. If a mistake of both parties to a transaction is not a mutual mistake, we do not know the meaning of thе word.
2. The assignment that the findings in the decree are contrary to the law and the evidence is not tenable. There is no question about the general proposition of law advanced by the plaintiff that, where one conveys lands with warranty, but without title, and afterwards acquires title, his first deed works an estoppel and passes an estate to the grantee the instant the grantor acquirеs his title.
Phillippi v. Leet,
We find nothing in the record which would justify our setting aside this decree. It is accordingly affirmed.
Mr. Chief Justice Denison, Mr. Justice Adams and Mr. Justice Butler concur.
