I dissent from the judgment of my associates, as expressed in the opinion of Mr. Justice Woodward, written after I had formulated my reasons in the following opinion.
The Special Term has denied this motion for a writ of mandamus, as stated in the order, “ not in the exercise of the court’s discretion, but upon the ground that, as a matter of law, the petitioners are not entitled to any relief.”
• In 1889 Mr. William H. Maxwell, then superintendent of public instruction in the city of Brooklyn (now city superintendent of schools of the city of New York), by authority of the board of education, granted one of the petitioners, Miss Baum, a certificate of her qualification as a teacher of grammar grades and a license as a teacher of grade A, which have never been revoked and are still in force. She claims that as holder of that license she was entitled under section 1101 of the revised Greater New Fork charter" to appointment or promotion to any grade in the grammar department *51of the public schools, but that in June, 1902, the board of education adopted two by-laws by which applicants for promotion to any grade in the last two years {i. e., the four upper grammar grades) of the elementary school course were required to pass certain examinations therein prescribed and to satisfy other requirements in addition to holding licenses grade A, and whereby applicants for appointment to the graduating class during the second semester of the elementary school course were required to have served at least one year in other grades of the last two years of the course.
In pursuance of such by-laws the city superintendent of schools prepared a list of those to whom licenses to teach had been granted and placed upon it the names of such teachers as had complied with these two by-laws, and also placed thereon the ñamé of Miss Baum as holder of license grade A. She has been regularly appointed to the fifth grammar grade and, at the request of the principal of School No. 18, has been teaching for some time in the fourth grammar grade, but it does not appear that the principal had any authority to appoint her to the fourth grade. She was notified that her place in the fourth grade must be filled by some one who has satisfied the requirements of the two by-laws and who is on the eligible list for promotion. She admits that she has not complied with the requirements of the two by-laws, and her appeal challenges the power of the board to make such by-laws as far as they declare her ineligible to appointment or promotion to which she was eligible under the certificate heretofore issued to her.
Two of the petitioners, The Brooklyn Teachers’ Association and The Glass Teachers’ Organization of Brooklyn, are corporations comprising teachers in the public schools of the borough of Brooklyn. I do not consider the right of such corporations to apply for such a writ of mandamus as is sought by this proceeding, because the view which I take of the matter involved will be sufficiently discussed upon the claim of the other petitioner, Miss Baum, and renders it unnecessary.
The appellants’ brief contains a statement that the sole question at issue on this appeal is, “ Has the superintendent the right to take away a certificate granted by the Board of Education?” This involves the examination of the powers of the board of education under the revised Greater New York charter (Laws of 1901, chap. *52466). Section 1068 confers upon the hoard of education power to make by-laws, rules and regulations for the proper execution of all duties devolving upon the board and for the transaction of all business pertaining thereto, and “ for the proper execution of all powers vested in it by law, and for the promotion of the welfare and best interests of the public schools and public school system of the city in the matters committed to its care.”
Section 1089 (as amd. by Laws of 1901, chap. Y18) requires the board of education to “ designate, subject to the requirements of the State school laws in force when this act takes effect or that may hereafter he enacted, the kinds or grades of licenses ■ to teach which may or shall be used in The City of Hew York, together with the academic and professional qualifications required for each kind or grade of license; ” and also to “ designate, sub-, ject to the like limitations, the academical and professional. qualifications required for * * * all other members of the teaching staff. * * * The names of those to whom licenses have been granted, including * * * those duly licensed in the several boroughs prior to the date on which this act takes effect, shall be entered by the city superintendent upon lists- to be filed in his office, a separate list being made for each grade or kind of license for which the board of education shall by its by-laws make provision. * * * Ho person shall be appointed to any educational position whose name does not appear upon the proper eligible list. Ho person shall teach in any public school in the city who has not such license, except as herein otherwise provided.” This section contains no provision as to promotions.
Section 1090,.however, provides that all teachers shall be appointed by the board of education on the nomination of the board of superintendents and shall be promoted or assigned to duty in such schools and to such positions in such schools as the board of superintendents, subject to the approval of the board of education, shall determine. Such nominations “ mtist be made from the list of properly certificated -•* * * teachers * * * in the regular order of the standing of the candidates on said lists. * * * Existing eligible lists in The City of Hew York and the relative standing of persons whose names are on said lists shall not be affected by the nassaere of this act.”
*53Under these provisions I should have no doubt that the board of education had power to pass the two by-laws in question, were it not for the fact that section 1101 contains a provision that “ all licenses to teach or certificates of qualifications for teaching granted by the superintendent of public instruction of the city of Brooklyn or by authority of the board of education of the said city of Brooklyn prior to February first, eighteen hundred and ninety-eight, * * * shall * * * be recognized by the city superintendent of schools and the board of examiners of The City of New York, as in full force, and shall entitle the holders to appointment or promotion to any position to which they were respectively eligible by the possession of such licenses or certificates.”
It is elementary that effect must be given to all the provisions of a statute where it is possible to do so. Evidently it was the intention of the Legislature by section 1101 to continue in force all the licenses and certificates issued by the city of Brooklyn, such as the one issued to Miss Baum, and that the holders of such licenses or certificates should remain entitled to promotion to any position to which they were rendered eligible by the possession thereof. Up to the time of the passage of the revised charter no other qualification except five years’ service as a teacher was made a condition precedent to promotion to the fourth grammar grade. Whatever right was created by such certificates is still preserved and continued to their holders by section 1101, and the board of education has no power to deprive them of it by any by-laws or otherwise.' It follows that the two by-laws are inoperative so far as they forbid promotion of persons holding the Brooklyn license grade A unless they comply with their new requirements, and that such holders stand on precisely the same plane as teachers in the borough of Manhattan who have complied with the two by-laws.
But the difficulty is that section 1090 provides that nominations for promotion must be made in the regular order of the standing of the candidates on the eligible lists, provided, however, that the board of superintendents may consider for each appointment the three persons whose names are highest on the appropriate lists. There is no method of ascertaining who stands highest on the lists so far as holders of the old Brooklyn certificates are concerned, for at the time they were issued the ratings or standards of holders were not preserved.
*54There was no provisión in the charter of the former city of Brooklyn (Laws of 1888, chap. 583, as amd.). for the promotion of any teacher merely because his name appeared on the eligible list. The return alleges that the by-laws of the board of education in the former city of Brooklyn provided that possession of an “A ” certificate made the holder eligible to appointment in' any grammar grade, but did not entitle him as of right to promotion merely by reason thereof, nor without specified terms of previous experience as teacher. Promotion to the fourth grammar grade required five yeai’S of previous experience. Promotions were made on the recommendation of and selection by the local committees of the schools, without reference to the respective standing of the candidates, there being no by-law requiring candidates to be graded according to percentage received on examination. Apparently the only right conferred upon the holder of license “ A ” was the right to apply for promotion to the local committee. As the power of promotion is by the revised charter taken away from that committee and devolved upon the board of superintendents, it is difficult to see any usefulness or value in the holding of the license grade A other than eligibility to promotion in accordance with the provisions of section 1090; and as it is not possible to .assign the standing of Miss Baum as compared with persons who have been examined since the revised charter took effect, there is no provision by which she can demand promotion merely because her name appears on the list. In other words, the petitioner fails to distinguish between eligibility to promotion and the. right to promotion. Eligibility exists, but that does not include the right to promotion; and here the former decision of this court in Matter of Stebbins (41 App. Div. 269) becomes applicable. We said (pp. 270, 271): “ We are at a loss to conceive of any vested rights in the relator which have been violated by the new qualifications prescribed by the board of education. By the issue of a certificate to him he became eligible to appointment as principal of a school, no distinction being drawn between high schools and other schools. He was appointed principal of a school, and continues in such place. * * * The most the relator obtained under his certificate was eligibility to appointment if the board saw fit to appoint him. He obtained no right to an appointment. He, therefore, had no vested right under his certificate.”'
*55We have before us a legislative casus omissus, but with that fact we are not concerned, for it is not for courts of justice to provide for all the defects or mischiefs of imperfect legislation, even though the statute becomes in whole or in part unenforcible. (Endl. Interp. Stat. §§ 18, 22 ;■ Smith v. Bines,. 2 Sumn. 354, 355.)
This brings us to the question whether any practical relief can be granted on this appeal. The petitioners prayed for a writ of mandamus:
First. Directing the city superintendent to prepare a list of persons to whom licenses to teach have been granted, including those licensed to teach in the several boroughs prior to January 1, 1902, and to specify the relative standing of the persons whose names appear thereon. The return alleges that so far as practicable such a list has been made up, and that as no records of any ratings or percentages were required to be or were preserved under the old system, it is an utter impossibility to prepare a list according to percentage,«but that the names of all persons licensed prior to January 1, 1902, including Miss Baum’s, are included on the list as prepared.
Second. Directing the superintendent to place upon the special list for promotion the names of all persons, including Miss Baum, who hold license grade A. The return alleges that this has already been done by placing the names on the list already referred to.
Thvrd. Directing the board of education to recognize as eligible for promotion to any of the four upper grammar grades holders of license grade A and to recognize such holders as eligible for promotion to the same extent as they were when the said licenses.were granted. The return alleges that such eligibility for promotion is recognized.
Fourth. Directing the superintendent and the board of education to rescind all resolutions and instructions prohibiting the promotion to any of the four upper grades of persons holding license grade A who have failed to comply with the requirements of the two by-laws so far as they exclude from nomination holders of license grade A.
Fifth. Directing the board of education to make appointments of all teachers in accordance with their relative standing upon the eligible list.
The granting of these last two requests would afford Miss Baum no practical relief. Her name is already on an eligible list for pro*56motion as required by section 1101, but. that does not of necessity and per se entitle her to promotion any more than did her license under the board of education of the city of Brooklyn. .No reason .is indicated why she should have preference over others whose names-appear on the same list whose standing is not inferior to hers. All nominations for promotion are discretionary in the board of superintendents, and mandamus will not issue to control the exercise of such discretion. The rule is well stated by Mr. Spelling, in his. Treatise on Injunctions and Other Extraordinary Remedies (2d ed. § 1433): “ Mandamus will not lie in any matter requiring the exercise of official judgment, or resting in the sound discretion of the person to whom a duty is confided by law either to control the exercise of that discretion or to determine the. decision which shall be finally given, but only to set him in motion and compel him to exercise his function according to some discretion when he has refused or neglected to act at all.” (See, also, Cassidy v. Young, 92 Ky. 227, where it was held that if judgment and discretion are to be exercised by a public officer as to how a duty shall be performed, then such duty is both judicial and ministerial, and a mandamus lies to compel the officer to act in the premises, but not to control his judgment and discretion.)
Under section 1Ó68 of the revised charter the board of education has power to make by-laws for the proper execution, of all duties and powers vested by law in it or its members and committees or the several local boards, and under section 1089 (as amd. by Laws of 1901, chap. 718) to designate the qualifications of the teaching staff. The two by-laws under consideration were passed in pursuance of such power.
There is authority for the principle that “ mandamus does not lie to compel a party holding an official position to reverse a decision already rendered in the exercise of discretionary powers. In other-words, what has been already done, however erroneously, cannot be undone by this remedy.” (Spelling Inj. & Oth.. Extra. Rem. [2d ed.] § 1436.) The Supreme Court of South Carolina, in the case of State ex rel. School District v. Rice (32 S. C. 97), said: “ If the superintendent of education had omitted or refused to' make the regulations required by the act he might have been put in motion by mandamus, and required to make the regulations as he was *57expressly required to do. But we think the duty imposed upon him required discretion, and a high degree of judgment, and not being a plain ministerial duty, but judicial or quasi-judicial in character, and having already performed the duty assigned him to the best of his judgment, we think mandamus will not lie against him.”
Moreover, if we should command the board of education to rescind the by-laws and resolutions, the petitioner, Miss Baum, would only be able to say that she was entitled to promotion, but there is no provision of the revised charter by which it can be said that she is to be preferred for promotion over hundreds of teachers who hold license grade A under the old system or license Ho. 2, its equivalent, in the new system. The board has made the two^ by-laws to assist in the- selection of persons from the eligible list for promotion, and I am not prepared to say that they are unreasonable.
For these reasons I think that the order should be affirmed.
Order reversed, without costs, and motion granted to the extent indicated in opinion of Woodward, J.