Respondent alleges that it is a corporation, domiciled in and doing a general mill and mining supply business from Salt Lake City, Utah; that in 1917 it sold and delivered certain mining and milling machinery to the defendants William F. Davis and G. R. Nickey, who were co-partners doing a mining and milling business at Shoup, Lemhi county, Idaho, under the firm name and style of Nickey & Davis. The prayer demands judgment against *253said defendants William F. Davis and G. R. Nickey and said partnership, jointly and severally.
Defendants were residents of Bntte, Montana, but were at the time engaged in operating the Kentuck Mining Company’s property at Shoup, Idaho. Soon after defendants were served with process, defendant Davis appeared at the office of E. W. Whitcomb, Esq., in Salmon, and retained his services on behalf of the defendants and deposited certain papers with him, Davis saying that he was an attorney, and upon his return from Butte would prepare an answer, which he never did. This was the last time the attorney ever met or heard from Davis, and in order to avoid a default, said attorney prepared on behalf of defendants an answer, in which he admitted, by failing to deny, the copartnership relation between Nickey and Davis.
At the beginning of the trial of the cause, appellant Nickey appeared and informed said counsel that the information given him by Davis as to appellant and Davis being partners was untrue, and counsel, believing .that such representations were untrue, asked leave of the court to withdraw.' the answer which he had filed on behalf of both defendants,' and to withdraw his appearance as counsel for Davis, which request was granted. He then filed an answer on behalf of appellant, denying all partnership relations between the two' defendants, and alleged other facts and circumstances which tended to show that Nickey was not a copartner of Davis and had not in any manner acquiesced in or had any knowledge of the purchase of the milling machinery and óther merchandise for which the action was being prosecuted against himself and Davis, and had not in any manner authorized its purchase. Defendant Davis failed to make any further appearance, and said counsel who had appeared for both defendants, before withdrawing his answer and appearance for Davis, stated that he had endeavored in every reasonable way to find his whereabouts, but had been unable to do so.
The cause was tried by the court with a jury upon the complaint charging that Nickey and Davis were copartners, *254and the answer of appellant Niekey denying all the material averments of said complaint. Upon the issues thus tendered by the separate answer of Niekey, no further appearance on the part of Davis, nor attempt to substitute counsel for him, being had, the case was tried, which resulted in a verdict of the jury finding “in favor of the .plaintiff and against the defendant William F. Davis and G. R. Niekey, and assessing plaintiff’s damage in the sum of $814.09.” Judgment was entered upon said verdict “that said plaintiff have and recover from said defendant the sum of $814.09 and costs, etc. ’ ’ Thereafter Niekey moved for a new trial, which' was denied, and from the judgment and order denying a new trial this appeal is taken by the appellant Niekey.
Respondent moves to dismiss the appeal on the ground that defendant Davis is a necessary party, that the failure of appellant to serve notice of appeal on Davis divests this court of jurisdiction to hear the appeal, for the reason that the judgment is joint as well as several against appellant Niekey, and that Davis is an adverse party and entitled to notice of appeal.
In Diamond Bank v. Van Meter, 18 Ida. 243, 21 Ann. Cas. 1273, 108 Pac. 1042, it is held that the term “adverse party,” as used in C. S., sec. 7153, means every party who has an interest in conflict with a reversal of the judgment, or whose rights might be adversely or injuriously affected by a reversal of the judgment, irrespective of whether such party be plaintiff, defendant or intervenor, and that where a joint judgment is rendered against two or more parties and an appeal is taken by one of the parties against whom such joint judgment has been rendered, then all other parties against whom such joint judgment has been rendered are adverse parties, and notice of appeal must be served upon each in order to give this court jurisdiction.
In Weeter Lumber Co. v. Fales, 20 Ida. 255, Ann. Cas. 1913A, 403, 118 Pac. 289, it is held that where the same counsel is attorney for three defendants, and only one of them appeals, notice of the appeal need not be served upon the nonappealing defendants or their counsel. The attorney *255who represents appellant in this appeal is the only attorney that has ever appeared for either defendant in the action.
C. S., sec. 6574, provides that the attorney in an action may be changed at any time before judgment or final determination of the cause, upon his own consent, filed with the clerk or entered upon the minutes. It would therefore seem clear that the withdrawal of the attorney’s appearance for the defendant Davis at the beginning of the trial was permissible under this statute.
C. S., sec. 6577, provides that when one party’s attorney dies, is removed, suspended or ceases to act as such, the adverse party must, before any further proceedings can be had, by written notice require such party to appoint another attorney or to appear in person. No attempt was made by respondent to comply with this provision of the statute, nor was there any default entered against Davis, but the ease proceeded to trial in the same manner as if the answer filed on behalf of both defendants had not been withdrawn and a new answer filed for appellant Nickey. The verdict, in form at least, is a finding against the defendants jointly and severally, but the judgment entered thereon is against “said defendant,” without in any manner indicating which defendant is intended. It is clear, however, that after the withdrawal of the joint answer and of the appearance of the attorney for defendant Davis, the respondent could not, without taking any action to substitute other counsel or to notify Davis to do so, obtain a judgment against him. (McMunn v. Lehrke, 29 Cal. App. 298, 155 Pac. 473.)
It must be conceded that the cases which attempt to define the term “adverse party,” as used in this statute, do not furnish an infallible rule for determining under all circumstances who is an adverse party within the meaning of this section, and it is a safe rule on taking an appeal to serve all parties to the action whose interests may be adversely affected by a reversal of the judgment. (Jones v. Quantrell, 2 Ida. 153, 9 Pac. 418; Coffin v. Edgington, 2 Ida. 627, 23 Pac. 80; Diamond Bank v. Van Meter, supra; Miller v. Wallace, 26 Ida. 373, 143 Pac. 524; State Bank v. Watson, *25627 Ida. 211, 148 Pac. 470; Glenn v. Aultman & Taylor M. Co., 30 Ida. 727, 167 Pac. 1163; Kline v. Shoup, 35 Ida. 527, 207 Pac. 584.) Where, however, as in this ease, counsel who was acting for both parties was permitted to withdraw his appearance for one of them, and the joint answer he had filed, and no effort was made by respondent to comply with the requirements of C. S., sec. 6577, and a judgment was entered against the remaining defendant only, a failure to serve the defendant against whom no judgment could have been taken, in this state of the record, will not deprive this court of jurisdiction to hear and determine the appeal, and the motion to dismiss will be denied.
Considering the cause upon merit: Appellant makes seven assignments of error, all of which are predicated upon the alleged error of the trial court in refusing to grant appellant a new trial on the ground of the insufficiency of the evidence to create a liability against appellant as a copartner of the defaulting defendant, Davis.
It appears that all of the negotiations for the sale of this merchandise were carried on by the defendant Davis, either in person, at Salt Lake City, or through letters and telegrams written by him to the plaintiff, it acting through its business manager, M. J. McGill, who testified that he was the manager for the respondent company and the* he conducted the negotiations for the sale of this merchandise, either with the defendant Davis in person or by correspondence, much of which correspondence appears in the record as exhibits. McGill was asked:
“Q. And all you know about any partnership existing between Mr. Nickey and Mr. Davis is what Mr. Davis told you? A. What Mr. Davis told me, and what he wrote in his letters, yes.”
Much of this correspondence was carried on on behalf of Davis upon printed letter-heads reading “William F. Davis, Attorney at Law, Butte, Montana, Silver Bow Block,” some of which had typewritten above the printing, “Nickey & Davis, Mine Operators — G. R. Nickey, William F. Davis.” The greater number of letters and telegrams written by re*257spondent in the course of its negotiations, and its subsequent letters attempting to collect this unpaid balance, were addressed to Davis, and it nowhere appears that appellant had any knowledge of the use that was being made of his name by Davis.
The mining machinery in question was purchased for use at what was known as the “Kentuck Mining Company property,” near Shoup, Lemhi county, Idaho, which was being operated under a lease owned by Grove & Sons, who had transferred to each of the defendants one-fourth of the capital stock of this company for a consideration of $6,500. Appellant paid outright for his stock, but defendant Davis, after negotiating with the other owners of the company, sought to discharge his obligation for stock in part by furnishing certain milling machinery and appliances needed for the operation of the mine. It is a fair inference from the record that in seeking to obtain credit for such purposes, he found it desirable to represent that appellant was associated with him in this enterprise as a partner. But aside from his representations, there is nothing in the record which indicates that appellant ever authorized him to make such representations, or knew that they were being made, or that he in any manner acquiesced in the same after they were made. On the contrary, he testifies, and ih this respect is corroborated by Grove & Sons, the other members of the company, that the acts of Davis in holding him out as a partner were wholly unauthorized, that he had no knowledge that such representations were being made until after the commencement of this action, and that he was not in fact associated with defendant Davis otherwise than as a stockholder and officer of this company.
It is a well-settled rule of law that one cannot be held liable as a copartner of another upon the unauthorized and false representations of such person, unless he has, either by some act or failure to act, misled a third party into relying upon such representations. Respondent having alleged the existence of this copartnership and based its right to recover upon the existence thereof, and thereafter through *258its general manager admitted that it had no knowledge of such relationship between defendants other than what its manager had been told by the defaulting defendant, Davis, we think the lower court erred in not sustaining appellant’s motion for a new trial.
The cause is reversed, with instructions to vacate the judgment and grant a new trial. Costs awarded to. appellant.
McCarthy and Dunn, JJ., concur.