after stating tbe case, de< livered tbe opinion of tbe court.
“Tbe source of all power vested in tbe supreme court is tbe constitution of tbe state, and in it must be found the measure of jurisdiction.” Tbe foregoing succinct statement taken from the brief of tbe petitioner in tbe proceedings No. 1,928 (In re Application of the Boston & Montana, Consol. Copper & Silver Min. Co., 28 Mont. 221, 72 Pac. 1103), correctly lays tbe foundation for determination of tbe question involved in this controversy. Tbe general rule, repeatedly affirmed and now well understood, that tbe constitution of tbe United States represents a grant of ppwer by tbe several states and tbe inhabitants thereof to tbe general government, while tbe constitutions of tbe sev? eral states operate upon the lawmaking branches' of those governments as limitations of authority, must be understood and considered in this connection with tbe qualification which our own state constitution has attached, that “the provisions of this constitution are mandatory and prohibitory, unless by express *212words they are declared to be otherwise.” (Section 29, Article III, Constitution of Montana.) This declaration can have but one meaning — 'that, with reference to these subjects upon which the constitution assumes to speak, its declarations shall be conclusive upon the legislature, and shall prevent the enactment of any law which has for its purpose the extension or limitation of the powers which they confer. An examination of our constitution discloses an attempt on the part of its framers to de*-fine the jurisdiction of this court, and such definition must be accepted as a- final declaration upon that subject: (1) The supreme court shall have appellate jurisdiction only, except as otherwise provided by this constitution (Section 2, Article YIII), and shall have power to issue, hear, and determine such original and remedial writs as may be necessary or proper to the complete exercise of its appellate jurisdiction (Section 3, Article YIII). (2) It shall have general supervisory control over all inferior courts, under such regulations and limitations as may be prescribed by law. (Section 2, Article YIII.) (3) It shall have discretionary power to issue, hear and determine writs of habeas corpus, mandamus, quo1 warranto, certiorari, prohibition, and injunction. (Section 3, Article YIII.)
For the purpose of this discussion, these are 'transposed, and) will be considered in this order: (1) original jurisdiction; (2) appellate jurisdiction; and (3) supervisory jurisdiction.
1. ORIGINAL JuEISDIOTION.
The power to issue, hear, and determine the six original writs enumerated above marks the limit of the original jurisdiction of this court. The scope and purpose of these writs are too well defined and understood to require particular attention. They are essentially prerogative writs'. They were so denominated at common law, and issued only on behalf of the state; and, if used for private remedy, it was only upon leave granted, and then in the name of the state. They were never presumed to be ordinary writs applicable to private controversies, and issuable *213as a matter of course. (Attorney General v. Railroad Companies, 35 Wis. 425; State ex rel. Clarke v. Moran, 24 Mont. 433, 63 Pac. 390; State ex rel. Anaconda Copper Mining Co. et al. v. Dist. Court, 25 Mont. 521, 65 Pac. 1020.) It can hardly be seriously contended that the exercise of the appointing p,ower sought to be conferred by the Act under consideration would fall within the purview) of any one1 of these writs, or within the original jurisdiction of this court. Indeed, a direction of this court designating a nonresident judge to sit in lieu of the one complained of would not be a writ at all, but simply an order which might be sighed by the justices themselves, and which would not even require the seal of the court to authenticate it. It may be true that, upon the failure of the re ident judge to sign a petition for his own displacement, the original jurisdiction of this court is sought to be invoked, or, in other words, in that instance the proceedings instituted in the supreme court.partake of the nature of original proceedings ; but, if so, the power of this court to act would have to be lodged somewhere, and be capable of definite determination. We must decline -to employ any one of the original writs mentioned above for the purposes of this Act. The fact that the federal courts and certain state courts of last resort do make use of the writ of mandamus or certiorari for the purpose of general supervision of inferior courts will not justify us in deflecting the pjurpose of those writs from well-defined channels, especially in view of the express grant of supervisory control to this court in plain and unmistakable terms., which, in the absence of legislative enactment defining the mode- of proceeding, may be exercised by means of such writ or process as for that purpose may be invented.
2. Appellate JurisuxctioN.
Upon appeal to this court in the ordinary course of litigation, the full measure of relief which may be granted is a review of the decision of the lower court and a judgment of this court *214affirming, modifying, or reversing the decision. Further than this we cannot go. (State ex rel. Whiteside v. District Court, 24 Mont. 539, 63 Pac. 395.) The Act in question, however, does not purport to invoke the appellate' power of the supreme court. Under its provisions every litigant is given two opportunities to secure a nonresident j udga to try his cause: First, upon the petition of the resident judge himself; or, second, upon the petition of the litigant, addressed directly to this court, in case the) resident judge refuses to sign 'the petition. In the first instance the supreme court has nothing to do —no discretion to exercise, no* deliberation-to indulge, no judgment to form — huti must make the appointment. In so doing we are not reviewing the action of the district judge, but merely acting on his suggestion or at his dictation. In the event the resident judge refuses or neglects to sigp, the petition, the only remedy sought by resort to this court is to have the appointment made without reference to his wishes.' The Act does not assume to require the resident judge to sign the petition. He may do so or not, but upon his refusal no' error can be predicated; and, if no error is charged, no review1 can be had. Then, can, be no affirmance, modification, or reversal of the order of the resident judge, when none has been made. If the Act required him to do something, his refusal might be overcome by appropriate action,' but a matter which is left purely to his discretion may not-bq controlled by1 the ordinary appellate power of this court. As an incident of and ancillary to the ordinary appellate jurisdiction of the supreme court, the power has been conferred to issue, hear, and determine such original and remedial writs as may be necessary or proippr to the complete exercise of this' appellate jurisdiction. But this power is only auxiliary. An action must be in this court on appeal, or an appeal sought to> be perfected, before this ancillary or subsidiary jurisdiction can be moved into activity for any purpose whatever, and then only in aid of such appellate jurisdiction. The very grant of this power implies, first, that an appeal has been or is sought to be perfected in this court; second, that the ordinary processes of *215a,p,peal are inadequate; and, third, that; some wait known to the common law, or such as this court may invent, will complete or fully supplement the appellate power.
3. Supervisory JurisdictioN.
(a) “The supremas court shall have a general supervisory control. * * *” (Constitution, Sec. 2, Art. VIII.) By express terms the constitution has lodged this jurisdiction in the supreme court, sitting as an organized judicial body; and, those terms being both mandatory and prohibitory, that power of general supervision cannot be conferred: upon any other body or upon any individual or individuals. It cannot be added to, subtracted from, or taken away altogether. Tested by this rule; the invalidity of the Act is too apparent for comment. It assumes to vest ih two' of the justices of this court, sitting in chambers, full power and authority to carry its provisions into effect, and to do any1 and all things which this court could do in the premises. The distinction between a court and the judge or justices thereof is so well defined and so distinctly marked in the jurisprudence of this country that it calls for no further comment here. If the objection now under consideration was the only one urged against the measure, we might eliminate the provisions conferring the appointing power upon the justices at chambers, and permit the remainder of the Act to stand.
(b) “The supreme court shall have general supervisory control over all inferior courts. * * *” (Constitution, Sec. ‘2, Art. VIII.) The supervisory power of this court operates only upon inferior courts, not upon persons; and, under the rule of interpretation provided by the constitution Itself, it cannot extend to or affect any other body or any individual or individuals. It is manifest from the terms employed that the Act does not purport to affect the district court — does not intend to disarrange the judicial machinery or change the place of trial, which can only be effected by a change of venue — but seeks merely to change the personnel of the presiding officer. The *216Act is aimed at tbe individual, not at tbe constituent! part of tbe lower court; for a change of judge would not change tbe court. Nor all judicial purposes it would remain tbe sáme after tbe change as before. (Hedrick v. Hedrick, 28 Ind. 291.)
(c) Tbe supervisory power granted to this court is a co-ordinate power, and, as with' its original and appellate jurisdiction, so with this. Tbe powter thus conferred will only be exercised after consideration, deliberation, and a judicial determination of tbe merits of tbe controversy with reference to which it is sought to be invoked. It cannot be appealed toi and a remedy bad under it as a matter of course. Commenting upon tbe sweeps of this power, this court, in State ex rel. Whiteside v. District Court, 24 Mont. 562, 63 Pac. 400, said: “As the' appellate jurisdiction was granted for tbe purpose of revision and correction, and tbe original jurisdiction under these writs was granted to enable us fi> render such relief as is appropriate under them, so tbe supervisory power was granted to meet emergencies to which those other powers and instrumentalities are not commensurate. It is independent of both, and was designed to infringe upon tbe functions of neither. It has its own appropriate functions, and, without undertaking to' define particularly what these functions are, we think one of them is to enable this court to control the course of litigation in the inferior courts where those courts are proceeding within their jurisdiction, but by a mistake of law, or wilful disregard of it, are doing a gross injustice, and there is no appeal^ or the remedy by appeal is inadequate. Under such circumstances, the case being exigent, no relief could be granted under the other powers of this court, and a denial of a speedy remedy would be tantamount to a denial of justice. Cases may arise also where seme relief could be granted under some one of the other original units named, but such relief would not be complete and adequate because of some error which could not be corrected by means of the limited functions of the particular wait, while the supervisory power is unlimited in the means at our disposal for its appropriate exercise.”
*217The terms “supervisory control” imply something to supervise as well as something to control, and the exercise of judicial discretion or judgment on the part of this court, while the Act under consideration does not provide for the one_ nor permit the other. If the resident judge signs the petition to' this court without stating any ground whatever, this court must appoint another judge to take his place, whether he -be disqualified or not. No discretion is left to this court, and no judicial action, is called for. The appointment must be made. If the resident judge refuses or neglects to. sign the petition, the litigant himself may apply to this court upon a petition setting forth the allegations of bias or prejudice on the part of the resident judges and upon a summary hearing this court may appoint another judge to take his place; and that, too, without notice to the accused judge or opposing, party litigant, and without any hearing having been granted to either of them. The effect of such an appointment, though made summarily, is to' declare the resident judge guilty of entertaining bias or prejudice to such an extent as to render the complaining litigant unable to secure a fair trial, and to' make such bias or prejudice ope-rate as a disqualification- of the resident judge. This we may not do, for this is not a legislative body. Nowhere in this Act, by express terms or by any fair implication, can it be said that bias or prejudice on the part of the resident'judge is declared to1 be a disqualification, and we know of noi other statute to that effect; and, in the absence of such statutory declaration, bias or prejudice does, not constitute a disqualification in this iurisdiction. This question was settled by this court in the early history of this state. (In re Davis' Estate, 11 Mont. 1, 27 Pac. 342.) In our judgment, the constitutional authority to entertain the petition or grant the relief prayed for must be apparent, and in the absence of such, authority we cannot act.
In addition to there being no constitutional authority under which this court can proceed, the Act is in violation and directly contravenes the provisions of Section 12 of Article VIII of the Constitution, which are that “any judge of the district court *218may bold court for any other district judge. * * *” This section of the constitution makes provision for the substitution of one judge for another, and must be held to be exclusive, at least until the authority vested in it has been exhausted. By analysis, we reach the result:
(1) The framers of our organic law. saw fit to repose the power of substituting one district judge for another in the district judge himself, and upon his invitation any other district judge in the state may be called to' take his place; and, if the invitation be accepted and acted upon, no authority can be found to deny such invited judge authority to proceed, and that, too, though he may reside in the same district as the; one extending the invitation.
(2) It cannot be seriously contended that the purpose of tire Act was to provide a mode of substitution in addition to the one prescribed by the constitution. This, clearly, cannot be cione; but, if it could, such a result would lead to endless confusion. If, under the provisions of this legislation, the supreme court should assume to act, and should by order designate the judge of the Fifth judicial district of this state to proceed “at some proper and convenient time” to1 Silver Bow county and try the contested election case of Ryan v. Weston, and, immediately before this court made such order, the district judge in whose department that cause is now pending should invite one of the other judges of the Second judicial district to try the same, and his invitation should be accepted and acted upon, and the case tried and determined by such invited judge under express authority conferred by1 the constitution, which clothes such invited judge with all the power and authority of the: one whom he supplants, the anomalous, not to say ridiculous, position of this court and the judge designated by it under' this legislative enactment would be too palpable for discussion. The resulting confusion would be intolerable.
(3) Section 1 of the Act provides that, upon the failure or refusal of the'district judge to sign the petition asking for his-own displacement, the supreme court or any two justices at *219chambers shall designate and apppint a judge “or any judicial district of this state other than that in which such action, proceeding, motion or application is pending, to appear * * * and preside at the trial of such action or other matter mentioned in the order and to determine the same.” This provision emphasizes the fact that the judge appointed by this court must come from some district other than the one, in which the cause is pending, and in that respect contravenes the provisions of Section 12, above, which provides that any district judge may hold court for any other district judge, and shall do so- when required by law; and that, too, whether he come from another or from the same district. When the constitution uses the terms “any district judge may hold court for any other district judge,” it means what it says, and cannot be, tortured into excluding one of the judges of the First judicial district or two of the judges of the Second.
Finally, the power sought to be conferred upon this court or two of its justices is not judicial in its character, but purely ministerial or executive, and invades another department of our state government, which may not be done. Section 1, Article IV, of the Constitution, provides: “The powers of the government of this state are divided into' three distinct departments: The legislative, executive and judicial, and no person or collection of persons charged with the exercise of powers properly belonging to one of these departments shall exercise any powers properly belonging to either of tire others, except- as in this constitution expressly directed or permitted.” The orderly disposition of the business of the state requires the faithful observance of this constitutional mandate-. “This court is placed by the constitution at the head of the judicial system of the state; from its judgments there is no appeal to any other state tribunal, and its determinations are binding upon the rest of the state judiciary. The legislature cannot interfere with its existence or supremacy; nor can that body alter the m ture of its jurisdiction and duties.” (People v. Richmond, 16 Colo. 274, 26 Pac. 929.)
*220However reluctant this court may be to declare unconstitutional oany measure which has received the sanction of the legislative department of our state government, we have ro> right to hesitate to do so when -the invalidity of the Act is apparent, when direct attack is made upon it, and we are called upon to determine the question.
Numerous other objections are urged against the validity or policy of the measure, but, under the views herein expressed, we deem it unnecessary tot consider them.
The motion to dismiss the proceedings is sustained, and the proceedings are dismissed.
Dismissed.