delivered the opinion of the court.
The object of this proceeding is to compel, by writ of mandate, the defendant to permit the plaintiff to perform his supposed official duties as general superintendent of the public roads of Granite county. To an alternative writ the defendant has answered by presenting an issue of law. The facts are these: The defendant is the board of commissioners of Granite county, — a county of the eighth class. The plaintiff is the county surveyor elected in November, 1898, foi the term of two years, beginning with the first Monday in January, 1899. By virtue of an act of the Fifth legislative assembly entitled “An act to define the powers and duties of county surveyors and to provide for their compensation, and to abolish the office of road supervisor,” approved March 4, 1897, he was general superintendent of all roads in the county from the time he entered upon the discharge of the duties of surveyor until March 10, 1899; on that day, conformably to the provisions of an act of the Sixth legislative assembly, approved March 3, 1899, entitled “An act to provide for the election of road supervisors, to define and regulate their powers and duties, to fix their compensation, and to repeal an act entitled ‘An act to define the powers and duties of county surveyors and to provide for their compensation, and to abolish the office of road supervisor,’ approved March 4, 1897,” the defendant divided the county into road districts, and appointed road supervisors, and on April 1st road supervisors were elected in the manner provided for in the act. Since the 10th day of March, 1899, the defendant has excluded the plaintiff from the management, control, and supervision of the highways of the county, and refuses to permit him to perform any of the duties of general superintendent of roads which were imposed upon him by the act of 1897.
Is the plaintiff the general superintendent of the roads in Granite county? If this question be answered in the negative, the proceeding must be dismissed. The answer to the *252question will be made when it shall have been determined whether or not that part of the act of 1897 which declares the county surveyor to be the general superintendent of all the roads within his county was repealed by the act of 1899, so as to affect a county surveyor in office at the time of the formal repeal.
' The act of 1897 abolished, in terms, the office of road supervisor, and imposed the duties of that office upon the county surveyor, who was made the general superintendent of all roads within his county. His compensation was fixed at the rate of $5 a day, the total compensation being graduated according to the classification of counties, and not to exceed $750 in a county of the eighth class. The act of 1899 repealed the act of 1897, and re-established the office of road supervisor. Plaintiff’s contention is that so much of the act of 189-9 as purports to repeal those provisions of the act of 1897 declaring the surveyor to be the general superintendent of roads, and allowing him compensation for his • services as such, is, as to the plaintiff, void, because repugnant to section 31 of Article Y. of the Constitution of Montana, ordaining that no law shall increase or diminish the salary or emolument of any public officer after his election or appointment.
We are of the opinion that the theory of the plaintiff is erroneous. By section 5 of Article XVI. of the Constitution, and by section 4312 of the Political Code, the county survey- or is declared to be a public officer, and the limitation upon the powers of the legislative assembly to increase or diminish salaries or emoluments is therefore applicable to statutes affecting his compensation in either of the ways denounced by the organic law; but the question presented is whether the act of 1899 does, within the meaning of the constitutional prohibition, diminish the emoluments of the surveyor. That the legislative assembly might require of the surveyor the performance of additional duties of the same general nature as were those imposed, upon him by the statutes in effect at the time of his election, and (in the absence of a salary designed to cover all services that the officer as such might perform) *253allow compensation for the discharge of the additional duties, must be admitted; that the right is also inherent in the assembly to enjoin new and different duties of the character described in the act of 1897, and (there being no such salary prescribed) at the same time allow compensation for the performance of them, and that it can do this without violating the constitutional limitation mentioned, must also be admitted. The imposition of the new services and allowance of fees for discharging them, is in no wise obnoxious to the prohibition of the Constitution against the increase or diminution of emolument after election or appointment; in illustration: Prior to the act of 1897, the principal, if not the only, duties of the county surveyor, were to make surveys for courts, counties, and persons, and to perform the labor incident thereto; to furnish plans and specifications for road and bridge work; and to act as chairman of all boards of road viewers. For these services he was paid at the rates specified in sections 2759 and 4639 of the Political Code. New, different, and arduous duties were imposed upon him by the act of 1897; 1¿he office of road supervisor was abolished, and the powers and duties theretofore vested in and confided for discharge to him were transferred to the surveyor; some of the labor which until that time had been done by the board of commissioners was likewise cast upon him. By the act of 1897 there was attached to his office a new function, — that of general superintendent of roads, the duties whereof were added to those which rested upon him when he was elected. For these additional services the act of 1897 provided compensation. If it attempted to increase or diminish the rate of compensation for the performance of services which were required of him by the statutes in force when the act was passed, it was to that extent inoperative with respect to a surveyor then in office, because in conflict with the prohibitory provision of the Constitution. In so far, however, as it allowed pay for the discharge of the new duties imposed, the act of 1897 was not obnoxious to the constitutional limitation mentioned. It is a well-settled principle of law that a provis*254ion such as is contained in the Constitution of this state, prohibiting any law increasing or diminishing the salary or emolument of a public officer after his election or appointment, does not forbid the allowance of compensation for new and different services exacted from him during his term, where the statute imposing the duties also prescribes the compensation for their performance. The constitutional limitation in question was intended to apply only to the salary and emolument to which the officer was entitled for services required of him by the law in force at the time of his election or appointment, unless the salary then provided was intended as compensation for all services which the officer, as such, might render. (Shiffert v. Montgomery Co., 12 Montg. Co. Law Rep’r. 100, S. C. 5 Pa. Dist. R. 570. See also, State v. Carson, 6 Wash. 250, 33 Pac. 428; San Luis Obispo Co. v. Felts, 104 Cal. 60, 37 Pac. 780.) The office of road supervisor is one of legislative, not constitutional, creation; it may be established and abolished at the pleasure of the legislative assembly. In abolishing the office of supervisor and transferring its duties to the county surveyor, the legislative assembly was acting within the scope of its power; and when, in 1899, it stripped the county surveyor then in office of the duties imposed, and deprived him of the compensation allowed therefor, by the act of 1897, it was still within the bounds of its authority, and did not diminish the salary or emolument of the plaintiff as general superintendent of roads. He has been relieved of the burden of rendering certain services exacted by a former statute which fixed, a rate of compensation; the gross receipts of his office may be diminished by the act of 1899, but the emoluments of the plaintiff as an officer have not been, and will not be, diminished, within the meaning of the Constitution. • “The rule is the same first and last; i. e. a certain sum for a certain service — compensation in propor-' tion to duty — the very rule which it was the design of the Constitution to establish. ’ ’ (San Luis Obispo Co. v. Felts, supra.) The act of March 3, 1899, is not subject to the specific objection urged against its validity. The plaintiff ceased *255to be tbe general superintendent of the roads in Granite county on the 10th day of March, 1899.
¡Submitted October 12,1899. Decided October 16, 1899.]The defendant attacks the act of March 4, 1897, upon the 'grounds that the title of the act, as well as the act itself, contains two subjects, that the title does not clearly express the subjects, and that Section 16 seeks to extend and apply the provisions of a statute which the act itself attempts to repeal, and to extend, make applicable, revise, and amend a portion of the Political Code without publishing it at length. The views already expressed suffice to dispose of this proceeding upon the merits, and we therefore decline to consider other questions.
Let a judgment be entered against the plaintiff and in favor of the defendant, dismissing the application, with costs.
Dismissed.
Mr. Justice Hunt, being absent, took no part in this decision.