This appeal appears to turn on the validity of eh. 20 of 1877. For there appears no room for doubt that, considered outside of the curative effect of that statute, there was sufficient evidence to go to the jury; for instance, on the date of filing the proposition of the railroad company. The affidavit of Babcock was clearly inadmissible; being admitted, it might well be disregarded in granting the nonsuit. But, *412aside from that, the double date indorsed upon the paper, the peculiar testimony of the clerk, the recital in the resolution of the supervisors, and perhaps other circumstances, were sufficient to raise a question of fact upon the date of the actual filing. And we infer from the record that the nonsuit was granted on faith of the validity of the healing statute.
Though a power somewhat arbitrary in its nature, however beneficent its exercise may sometimes be, and closely bordering— if not intruding — on the judicial function (Greenough v. Greenough, 11 Pa. St., 489; Grim v. Weissenberg, 57 id., 438), it is too late to question the general authority of the legislature, “by other legislation to dispense with obedience to those regulations which have been prescribed by itself for the protection of those who are taxed.” Cooley’s Tax., ch. 10. The power certainly has limits, which the authorities leave somewhat uncertain. And it extends generally to subjects other than taxation. Cooley’s Const., 369-383. And “ the healing statute must in all cases be confined to validating acts which the legislature might previously have authorized. It cannot make good retrospectively acts which it had previously no power to permit.” Cooley’s Const., 381. Curative statutes, and the principles on which they rest, have been frequently upheld by this court. Hasbrouck v. Milwaukee, 13 Wis., 37; S. C., 21 id., 217; Tallman v. Janesville, 17 id., 71; Smith v. Cleveland, id., 556; Cross v. Milwaukee, 19 id., 509; May v. Holdridge, 23 id., 93; Hamilton v. Fond du Lac, 25 id., 490; Fisk v. Kenosha, 26 id., 23; Knapp v. Grant, 27 id., 147; Dean v. Charlton, id., 522; Phillips v. Albany, 28 id., 340; Mills v. Charlton, 29 id., 400; Evans v. Sharp, id., 564; Dill v. Roberts, 30 id., 178; Dean v, Borchsenius, id., 236; Single v. Supervisors, 38 id., 363.
Perhaps the true limit of the curative power of the legislature, as gathered from all the authorities and sanctioned by principle, is, or ought to be, that it can reach things voidable only, not void; defects of execution only, not of authority or *413jurisdiction; and is confined to defective proceedings under previous legislative authority. It is true that many most respectable authorities do not set so narrow a limit to the power. In this case, however, we have to deal with the nature, and not with the limit, of the power, and only make a general statement of its limit, as aiding an understanding of its nature.
The power appears to rest in the theory that the authority of the legislature over the subject is a continuing authority; that a later statute may change the modus Oferandi prescribed by a former; that when a statute has authorized a thing to be done, and prescribed the details of proceeding necessary to consummate it, and the thing has been done in pursuance of the authority, but with different or defective details of proceeding, a subsequent statute may authorize, mono fro fame, the details of proceeding actually taken, as the prior statute might have done. Such details resting in the absolute discretion of the legislature, it is held that a statute may, ex fost facto, sanction those actually used, to support the statutory proceeding. This may be called ratification, and may be in the fonn of ratification. But it rests upon the continuing power of the legislature. All the authorities agree, as is apparent without authority, that the legislature cannot ratify what it could not have authorized. And it seems equally apparent that it cannot ratify what it cannot authorize. For the exercise of the power implies legislative authority over the subject, as well at the time of the curative statute as at the time of the enabling statute. Legislative jurisdiction of the subject is equally essential at both times; both statutes resting on the present authority of the legislature to authorize the proceeding and to prescribe its details. Surely a statute could not authorize a new proceeding or sanction an old one, in a matter presently without the scope of legislative authority. ¥e know of no exception to the rule that the power to do a thing or to authorize it to be done nv/no fro tuno, implies present right.
*414Yiewed strictly in tbe light of ratification, the same reasoning appears to apply. Omms enim ratihabitio retrotraMtur, eb mandato cequiparatur. That is to say, ratification carries present assent or authority back to the time of the thing ratified; implying present power to authorize or assent to what has been already done. This seems to be expressly held in the application of the maxim to legislative ratification in Weister v. Hade, 52 Pa. St., 474, quoted and approved in Mills v. Charlton, supra. One may ratify things done during disability, after disability removed. But one under disability cannot ratify things done before disability. Possibly it might be claimed that a legislature with constitutionally enlarged power might ratify what it had authorized before the power accrued; which, however, we are not at all inclined to concede. But surely a legislature, constitutionally restrained from authorizing a thing, cannot ratify the thing imperfectly done under authority given before the restraint. It cannot ratify what it cannot do. For its ratification must carry present authority back to the time of the thing ratified.
It is believed that all the cases, here and elsewhere, supporting legislative authority to pass curative statutes, are either expressly or tacitly rested upon the power of the legislature to do, in the present, what it ratifies, in the past. This is true of all the cases in this court cited supra. It appears to be the ground on which Judge Cooley rests the power in both of his admirable works to which we have above referred, and of the cases which he cites. "We know of no case holding that the legislature can act mmo pro time upon a subject intermediately withdrawn from their authority. Cass v. Dillon, 2 Ohio St., 607, and State v. Trustees, 8 id., 394, cited for the respondent, as well as Aspinwall v. Daviess Co., 22 How., 364, all turned upon questions of constructive repeal of previous statutes by amended constitutions.
No question is made of the power of the legislature to pass ch. 78 of 1871, under which the proceeding ratified in ch. 20 *415of 1877 was taken. But in tbe mean time came tbe constitutional amendment of 1871. By tbis tbe legislature is prohibited from enacting special or private laws in nine several cases; tbe sixth being, “ for assessment or collection of taxes, or for extending tbe time for collection thereof.”
It is impossible to mistake tbe object or spirit of this amendment. Bor years, tbe statute books bad been incumbered with multitudinous acts of tbe several kinds prohibited; vicious not only in quantity but in quality. In some of tbe instances prohibited, they meddled in purely private matters; authorizing what might be done without tbe authority or with judicial authority. In other instances, they conferred special authority in cases within general authority. And in all instances relating to things jpublioi juris, they broke the uniformity and harmony of law so essential to good government; substituting special for general rules, and rendering a large body of the municipal law fragmentary in character, and different by locality. After long endurance of such excesses of legislation, the amendment of 1871 was adopted; in order, so far as it went, to confine legislation to its legitimate objects, to substitute general for special enactments, and to restore order and uniformity to municipal law. And we cannot dpubt that, except so far as power over any of the nine several subjects is reserved by other provisions of the constitution, the amendment was intended to withdraw them, and does effectually withdraw them, from any exercise of legislative authority over them, by private or special statutes. As the supreme court of the United States once truly and emphatically said of the eleventh amendment to the federal constitution, withdrawing federal jurisdiction of suits of individuals against states (12 Peters, 731), the amendment of 1871 took from the legislature “ all jurisdiction, past, present and future/’ of special legislation on the nine prohibited subjects. There is here no distinction between retrospective and prospective legislation. Since the amendment, and except as saved by some distinct grant of power in *416the constitution not repealed by tbe amendment, these nine subjects are absolutely beyond tbe pale of legislative jurisdiction to pass private or special enactments. This, upon its face, is tbe manifest purpose of tbe amendment; and we cannot give it a different construction. Quilmret m Utera, hmret in cortiee,
"Were tbis otherwise, tbe legislature might still, by special statute, notwithstanding tbe prohibition, change one’s name or heir, by repealing a former statute giving him another name or heir; might still alter a highway by repealing a former statute changing its route; might still authorize one to keep a ferry, by extending the time, or authorizing the assignment, of the grant of a former statute; might still authorize the sale of property of persons under disability, by amending defective powers, or extending time, under a former statute; might still locate or change a county seat by repeal or modification of a "former unexecuted statute; might still effect the collection of a tax, by giving validity to a levy invalid under a former statute; and so on ad nauseam,. Most assuredly this would be neither the letter nor the spirit of the amendment. The evil would not be effectually laid; its ghost would continue to haunt the state for a'generation or so, disturbing the order of legislation intended to be secured by the amendment.
This view is not only not inconsistent with, but is strongly supported by, what is said upon the subject in Attorney General v. Railway Cos., 35 Wis., 425. There the question was, whether the prohibition in the ninth clause of the amendment, “ to grant corporate powers or privileges,” took from the legislature the power reserved in the constitution to alter or repeal special corporate charters previously granted. It was held that the amendment was not intended to affect, and did not affect, the reserved power; that the power therefore continued notwithstanding the amendment; and that the prohibition to grant corporate powers or privileges was therefore equivalent to a prohibition to grant corporate charters de novo. But the *417court came to that conclusion by force of, and rested it upon, a distinct and independent grant of power in the constitution, not reached, or intended to be reached, by the amendment. There is certainly no such clause in the constitution on which the power to pass special curative statutes in aid of the assessment or collection of taxes could rest. That power was appurtenant to the former power to pass special acts for the assessment or collection of taxes. And the appurtenance went with the main power.
As far as the amendment reaches, and as long as it lasts, the peace of the state is secured against the pest of further private or special legislation. And ch. 20 of 1877 can have no curative effect upon the tax in question in this case.
By the Oowrt. — The judgment of the court below is reversed, and the cause remanded for a new trial.