delivered the opinion of the court:
The main contention of appellee is, that the act of May 11, 1901, (Session Laws of 1901, p. 157,) was not a valid enactment because it attempted to amend section 76 of said Farm Drainage act, and at that time there was no section 76 of said act. The first amendment to the Farm Drainage act of 1885 bearing on the question now under discussion was passed by the legislature in 1895, adding sections 15a (which provided for the election of drainage commissioners and prescribed their oath) and 15&, (providing for the appointment of a treasurer by the drainage commissioners.) (Bradwell’s Session Laws of 1895, p. 120.) The next amendment was made June 10, 1897, and purported to amend sections 76 and 89a of said Farm Drainage act as amended by the last amendment of 1895. (Bradwell’s Session Laws of 1897, p. 157.) It is apparent from the reading of this amendment in connection with the act it purported to amend, that a mistake was made as to the number of the sections amended. Section 76 as it stood in the act at this time covered the subject of districts by user. The purported amendment of said section 76 referred in no way to districts by user, but to the appointment of a clerk by the drainage commissioners. Paragraph 76 of Hurd’s Stat*515utes of 1895 (p. 626) is section 2 of the Farm Drainage act, and refers to the clerk of the drainage commissioners, as does this last amendment of section 76, passed June 10, 1897. In said Farm Drainage act there was no such section as 89a, although Hurd’s Statutes of 1895 (p. 629) headed section 150 of the amendment of 1895 as paragraph 89a. The drafter of this amendment clearly made a mistake in referring to the sections amended, evidently having before him Hurd’s Statutes of 1895 and referring to the paragraph numbers given to the section by the annotator instead of to the sections of the law itself. That the legislature understood this to be the fact is shown by the act of May 10, 1901, (Session Laws of 1901, p. 162,) wherein the mistake is set out and said amendent of June 10, 1897, is repealed, and by the title of which said amendment it was proposed “to re-enact said section 76 and to legalize proceedings had and drainage districts organized under said section 76.” In the body of the act, however, nothing is said about re-enacting section 76.
Assuming that section 76 was not re-enacted by this amendment of May 10, 1901, (Session Laws of 1901, p. 162,) then does it follow that the act of May 11, 1901, (Session Laws of 1901, p. 157,) which attempted to amend said section 76, is invalid because there was no section 76 of said act in existence ? "There is some conflict of authority on this question. The precise point here under discussion, so far as we are aware, has never been before this court for decision. A kindred question, as to the effect of a second amendment of an act which ignores a prior amendment, has been considered by this court in Louisville and Nashville Railroad Co. v. City of East St. Louis, 134 Ill. 656, and Village of Melrose Park v. Dunnebecke, 210 id. 422, and other cases referred to in these two decisions. In the latter case just cited there was an attempt to distinguish it from the earlier case of Louisville and Nashville Railroad Co. v. City of East St. Louis, supra. Whatever conflict *516there may be in these two cases, we are of the opinion that the reasoning of the Melrose Park case, supra, is more nearly in harmony with the weight of authority than is the earlier decision referred to, and supports appellants’ position. The United States Court of Appeals, in City of Beatrice v. Masslich, 108 Fed. Rep. 743, stated: “The decided weight of authority and the better opinion is, that an amendatory act is not invalid, though it purport to amend a statute which had previously been amended or for any reason been held invalid.” In Lewis’ Sutherland on Statutory Construction (2d ed. vol. 1, sec. 233,) the author states that this view of the United States Circuit Court of Appeals “is sustained by the decisions.” In Jones v. Commissioner, 21 Mich. 236, Judge Cooley, answering' in the opinion the argument that an amendatory act referring to a repealed or non-existing act must be invalid, said: “This reasoning seems to us too refined for practical value. Under our constitution the mode of amending a section of the statute is by enacting that the section in question ‘shall read as follows.’ The position of the section in the original statute is not changed, and there is no reason why an amendment, of a subsequent section should not be made by reference to its original number in the statutes.” The rule for the guidance of courts is to ascertain the intention of the legislature, and not their mistakes, either as to law or fact. (1 Lewis’ Sutherland on Statutory Construction,—2d ed.—sec. 233; Commonwealth v. Kenneson, 143 Mass. 418.) The only question is, has the legislature expressed its purpose intelligibly and provided fully upon the subject? If it has, then the act is valid and must be upheld. (People v. Canvassers, 143 N. Y. 84; see, also, to the same effect, People v. Onahan, 170 Ill. 449.) While said act of May 10, 1901, (Session Laws of 1901, p. 162,) did not provide in the body of the act for the re-enactment of said section 76, the intent of the legislature to re-enact that section is plainly shown by the title. We said in Baird v. Hutchinson, 179 Ill. 435, *517that the meaning of the legislature must be gathered from all they have said, as well from that which is ineffective as from that which is authorized by law; and it was there held that the unconstitutional part of the law might be considered in order to ascertain the intent of the legislature in another part of the same law. 2 Lewis’ Sutherland on Statutory Construction, (2d ed.) sec. 452.
It might well be urged that the act of June 10, 1897, (Bradwell’s Session Laws of 1897, p. 157,) the subject matter of the purported amendment not being germane to the subject matter of said original section 76 and being plainly a mistake, as is heretofore shown, did not, in fact, amend said section 76 of said Farm Drainage act of June 10, 1897. (1 Lewis’ Sutherland on Statutory Construction,— 2d ed.—sec. 241; 2 id. sec. 410, and cases cited; Otis v. People, 196 Ill. 542; School Directors v. School Directors, 73 id. 249.) But, regardless of the question as to whether said section 76 was amended by said act of June 10, 1897, we are of the opinion that the intent of the legislature by said act of May 10, 1901, (Session Laws of 1901, p. 162,) and said act of May 11, 1901, (Session Laws of 1901, p. 157,) is clear and unmistakable; that under the authorities heretofore cited said act of May 11, 1901, was valid and in full force and effect at the .time said order of December 10, 1904, was made and entered for the creation of said Drainage District No. 1 of the said town of Divernon. Village of Melrose Park v. Dunnebecke, supra.
The title of said act of May 11, 1901, refers to the original Farm Drainage act as having been approved June 26, 1885, when, in fact, it was approved June 27, 1885. The enacting clause of the amendatory act of 1901 gives the correct date and shows clearly what act was amended. Barnes v. Drainage Comrs. 221 Ill. 627.
The question as to whether appellants have been superseded as drainage commissioners for said district by the election of others has not been discussed in appellee’s brief, *518but we assume that the argument in support of that contention is that section 150 of said amendment of June 21, 1895, is still in force. Said amendment of June 10, 1897, although it attempted to amend section 89a when there was no such section in the original act, was clearly an attempt to amend section 15a of the act as amended June 21, 1895. This being the clear intention of the legislature, under the authorities we have heretofore cited section 890 of said amendment of June 10, 1897, must be construed as an amendment of said section 15a. (Illinois Central Railroad Co. v. People, 143 Ill. 434.) Section 89a was repealed by said act of May 10, 1901, and it necessarily follows that section 15a is not in existence, and there was no authority for the election of said Browning, Haire and Barnes on said second Saturday of March, 1906. Moreover, it is clear that said act of May 11, 1901, provided specifically for the highway commissioners acting as drainage commissioners, and that the provisions of said section 15a as to said drainage commissioners would be so repugnant to said act of May 11, 1901, that both could not be in force. Therefore, under the authorities, said last named act would be understood as repealing said section 15a even if it had not theretofore been repealed. English v. City of Danville, 150 Ill. 92; Board of Water Comrs. v. People, 137 id. 660.
The legality of the organization of this district was raised in this court by writ of certiorari in the case of Barnes v. Drainage Comrs. supra, and while the decision in that case may not be res judicata of the questions here involved, as contended for by appellants, it is quite evident that the points we have heretofore discussed were raised and considered in that case, and the decision, so far as it has any bearing, tends strongly to uphold the conclusion heretofore reached herein. The last sentence of the opinion in Barnes v. Drainage Comrs. supra, stated: “The record shows that the district was legally organized.” See, also, People v. McDonald, 208 Ill. 638.
*519What we have already said renders unnecessary any discussion of the other questions raised in the briefs.
The judgment of the circuit court will be reversed and the cause remanded for further proceedings in accordance with the views herein expressed.
Reversed and remanded.