This is a petition to the superior court under the Uniform Declaratory Judgments Act, G. L. 1956, chap. 30 of title 9. It seeks a declaration that those provisions of G. L. 1956, chap. 2 of title 22, which relate to the prevailing apportionment of seats in the house of representatives are in the light of the 1960 federal census violative of article XIII of amendments to the constitution of this state and of article XIV of amendments to the United States constitution. Hereinafter references to article XIII of amendments will mean to the constitution of this state and to article XIV will mean amendments to the United States constitution.
The petition also prays for injunctive relief and for certification to this court of questions of such doubt and importance as to affect the merits of the controversy. After a hearing, a justice of the superior court denied the petitioners’ motion for a preliminary injunction and invoking the authority of G. L. 1956, §9-24-27, ordered the certification of certain questions as prayed. The cause is before us on said order.
The petition recites that respondents, His Excellency the Governor, the Secretary of State, and the members of the board of elections in their respective official capacities, are charged by constitution and statutes with the holding and conducting of elections for state officers, the certification and qualification of successful candidates and the enforcement of all laws relating thereto; and that petitioners are informed and believe that the 1962 primary and general election of candidates for the house of representatives will be conducted in accordance with the prevailing statutory apportionment of seats in the house of representatives, which apportionment, having been enacted by P. L. 1930, chap. 1526, now G. L. 1956, §22-2-4, has become obsolete and violates article XIII of amendments to the constitution *71of this state and article XIV of amendments to the constitution of the United States.
Article XIII, §1, of' amendments provides as follows:
“Composition of house of representatives. — The house of representatives shall never exceed one hundred members, and shall be constituted on the basis of population, always allowing one representative for a fraction exceeding half the ratio; but each town and city shall always be entitled to at least one member; and no town or city shall have more than one-fourth of the whole number of members. The general assembly may, after any new census taken by the authority of the United States or this state, reapportion the representation in conformity with the foregoing provisions. As soon as this amendment goes into effect, the general assembly shall divide each town and city into as many districts as it is entitled to representatives, and after each census, or as occasion may require, the general assembly may so divide each town and city, and one representative shall be elected from each district by the qualified electors thereof. Such districts shall be as nearly equal in population and as compact in territory as possible.”
Although article XIV of amendments to the United States constitution provides for equal protection and for due process and petitioners have invoked both clauses, we deem it necessary to consider only whether the prevailing apportionment of seats in the house of representatives denies to petitioners the equal protection of the laws as guaranteed by said amendment, the pertinent language of which is as follows: “* * * nor deny to any person within its jurisdiction the equal protection of the laws.”
The petition further recites that petitioners are residents of the cities of Cranston and Warwick respectively; that according to the bureau of the census 1960 report the population of Cranston is 66,766 and of Warwick is 68,504; that by the 1930 apportionment said cities were allotted five and three seats respectively; and that such continues *72to be their allotted apportionment despite a marked increase in their population.
The petitioners also aver, and it so appears from the record, that by the terms of G. L. 1956, §22-2-4, the city of Woonsocket was allotted eight seats, the city of Central Falls four seats, and the town of West Warwick three seats, which representation said communities still enjoy although the 1960 census report reveals their population to be 47,-080, 19,858 and 21,414, respectively.
The petition as originally filed averred in substance that the general assembly had not reapportioned house seats since 1930 and that petitioners were informed and believed that no reapportionment would be enacted prior to the holding of the next primary and general election. Subsequent to said filing the general assembly gave first passage to a proposed constitutional amendment which, if again enacted by the legislature and approved by the people at the 1964 general election, would increase the limit on house seats from 100 to 125. Thereafter and before hearing, the petition was amended so as to acknowledge the action taken by the general assembly, averring, however, that such action afforded no relief to petitioners.
They further aver in substance that, in the light of the 1960 census report and by virtue of the constitutional provisions quoted supra, the inhabitants of the cities of Cranston and Warwick are entitled to increased representation, and that the inhabitants of other municipalities, more particularly those of Woonsocket, Central Falls and West Warwick, are not entitled to such over-representation as they presently enjoy.
In addition to the foregoing, it appears that petitioner David F. Sweeney, Jr. is a member of the house of representatives from the city of Cranston. As such he avers that if re-elected on the basis of §22-2-4 his title to the office will be in doubt. For reasons which will become ob*73vious, this contention does not require consideration in these proceedings.
On these premises, petitioners pray that the questions of law and the question of the constitutionality of G. L. 1956, chap. 2 of title 22, be certified to this court as provided by G. L. 1956, §9-24-27. Inconsistently they also pray that the superior court declare the unconstitutionality of chap. 2 of title 22, and temporarily enjoin respondents from performing their applicable duties pending such declaration. Further, they pray that the superior court appoint a commissioner or commissioners to devise a schedule of apportionment consistent with the population of the several municipalities as shown by the 1960 federal census and the formula contained within article XIII of amendments, and that the superior court decree the holding of elections of candidates to the house of representatives in accordance with such schedule or, in the alternative, that the election of representatives be held at large.
The petition was heard by a superior court justice who, on a finding that the relevant facts alleged had been established as true, denied petitioners’ motion for a preliminary injunction but granted a motion that certain questions be certified to this court as being of sufficient doubt and importance as to affect the merits of the controversy. Pursuant thereto he certified thirteen questions.
The instant proceedings follow Moore v. Langton, 92 R. I. 141, 167 A.2d 558. In that case, however, we entertained serious, if unexpressed, doubts as to the propriety of the superior court’s invoking the provisions of §9-24-27 in a proceeding brought under the Uniform Declaratory Judgments Act. Indeed, in Rondoni v. Sherman, 90 R. I. 322, at page 326, 158 A.2d 267, 269, we indicated such doubts. However, both cases involved serious questions of immediate import and for that reason we did not deem it desirable to delay a decision on the merits on procedural grounds.
*74The instant cause also involves grave questions of public concern and we are, therefore, constrained to consider the same in its present posture, even though we believe the legislature did not intend to permit a combining of petitions under the Uniform Declaratory Judgments Act with certifications under §9-24-27. Such certification in the present instance involves but a phase of the controversy in litigation. A petition filed pursuant to chap. 30 of title 9, however, constitutes the entire controversy with the obligation on the superior court to make the declaration prayed for with a right of appeal to this court.
In the interest of orderly procedure, therefore, we declare that we will not hereafter entertain certification of questions under §9-24-27 in proceedings commenced under ■the Uniform Declaratory Judgments Act.
Furthermore we deem it neither necessary nor desirable in these proceedings to consider and answer each specific question as certified. The first three questions relate to the nonconformance of the legislation in issue to article XIII of amendments to the state constitution, seven others raise the issue of equal protection, and the remaining questions are remedial in nature. For purposes of brevity and continuity we shall so group and consider them.
Although petitioners by their prayer challenge the constitutionality of chap. 2 of title 22, only §22-2-4 is specifically mentioned in the questions certified to us. This is presumably occasioned by the fact that it is this section which specifically enumerates those communities to which in 1930 the general assembly allotted two or more seats on the basis of their then prevailing populations, among which are Cranston, Warwick and those communities whose representation is herein under attack.
The petitioners are understandably content to limit the scope of their complaint to alleged disparities existing between communities which result from population shifts since the 1930 apportionment. We, however, are confront*75ed with the more fundamental question whether the prevailing apportionment denies to the individual elector the weight to which his vote is entitled, regardless of where he resides within this state. This proposition inheres by reason of petitioners’ recourse to the equal protection guaranteed by article XIY of amendments.
Moreover, we are not here asked to consider the unoonstitutionality of an act of the general assembly. Rather, we are asked whether by reason of their inaction the general assembly has suffered an apportionment statute, the constitutionality of which at the time of its enactment is not seriously questioned, to become unconstitutional in that it no longer conforms to article XIII of amendments. Undoubtedly an act may become unconstitutional by reason of legislative inaction just as a constitutional act may be unconstitutional in application. Nashville, Chattanooga & St. Louis Ry. v. Walters, 294 U. S. 405. No question exists as to the jurisdiction of this court to strike down a statute found to be unconstitutional, nor to enjoin public officials in the exercise of duties assigned to them thereunder. To what extent we may interfere in the case of legislative inaction, however, leads to grave questions involving the separation of powers.
Be that as it may, we are disturbingly confronted with an overriding and paramount question of tremendous import, namely, does the formula of apportionment contained within article XIII of amendments violate the equal protection clause of article XIV of amendments to the United States constitution? This article is the supreme law of the land and supersedes the provisions of a state constitution which are in conflict therewith. Cooper v. Aaron, 358 U. S. 1.
It would be an inexcusable dereliction of judicial responsibility if, cognizant of the overriding question with which we have been confronted, we were to hold that the legisla*76ture has a constitutional obligation to- reapportion the house of representatives on the basis of the 1960 census and the formula provided by article XIII of amendments and, complying therewith, the legislature did so apportion only to have the federal judiciary later declare that such reapportionment constituted a denial of equal protection.
Subsequent to Baker v. Carr, 369 U. S. 186, wherein it was held that an elector had standing to challenge the constitutionality of an apportionment statute, or, inferentially, such legislative inaction as is here present, and that the same constituted a justiciable question, a number of appellate courts, state and federal, have been confronted with the question now before us. Maryland Committee For Fair Representation v. Tawes, Md., 180 A.2d 656; Scholle v. Hare, 369 U. S. 429; Toombs v. Fortson, 205 Fed. Supp. 248; W.M.C.A., Inc. v. Simon, 82 Sup. Ct. 1234. All have recognized, as must we, that the states are bound by the decisions of the United States Supreme Court.
Although Baker v. Carr held that federal courts had jurisdiction to- inquire into the validity of state legislative apportionment acts, the supreme court’s remand subsequently of Scholle v. Hare to the Michigan court suggests that the question is revie-wable in the state courts as well. Indeed there is a strong implication that recourse to the state judiciary by an elector complaining that his vote has been so debased as to be the subject of invidious discrimination will, unless the state courts fail to respond, forestall federal intervention.
We acknowledge that we are troubled by the co-ordinate relationship which exists between this court and o-ur general assembly not present vis-a-vis the latter and the federal judiciary. Notwithstanding the delicacy of the problem, however, we conceive it to be our clear duty in the light of the majority and concurring opinions in Baker v. Carr, supra, and the remand in Scholle v. Hare, supra, as *77well as that of a United States circuit court in W.M.C.A., Inc. v. Simon, supra, to consider whether the constitutional apportionment formula of article XIII of amendments denies to these petitioners and all electors similarly affected the equal protection guaranteed by the United States constitution. Indeed in W.M.C.A., Inc. the court found to be without merit the state’s contention that the apportionment complained of was in compliance with the provisions of the New York state constitution.
The population of this state, as shown by the 1960 federal census, is 859,488. On the basis of one hundred seats the population factor to be applied is 8,594. An examination of the respective populations of our several municipalities reveals that eleven communities have a combined population of less than 3 per cent of the state’s inhabitants, but are represented by 11 per cent of the total number of seats in the house. Moreover, each of the aforesaid communities has a population of less than one half of the 8,594 factor. Reapportionment on the basis of our constitutional formula would result in a retention of such a glaring inequity. The city of Pawtucket with more than 9 per cent of the state’s inhabitants would be entitled to nine seats as contrasted to the eleven seats representing less than 3 per cent of the state’s inhabitants. The city of Providence would be entitled to approximately twice the number of seats which would be necessarily allotted to the aforesaid eleven communities, although Providence has more than eight times the number of inhabitants residing in said communities. The inhabitants of the city of Warwick, although outnumbering those in said communities by a ratio of approximately 17 to 6, would be entitled to three seats less. Ten towns would be entitled to but one representative although each of such towns has a population ratio ranging from a minimum of 12 to 1 to a maximum of 22 to 1 over the town of New Shoreham with its population of 486.
*78Sharply disproportionate representation may likewise be noted as between towns without regard to cities in four of the five counties. In Newport county, for example, Tiverton inhabitants would be subjected to discrimination at a ratio of 10 to 1 and Middletown inhabitants, outnumbering their neighbors in Little Compton by 7 to 1, would be entitled to no greater representation than the latter.
An examination of Kent county reveals that West Warwick, which would be entitled to two members, has a population in excess of éighteen times that of its neighbor West Greenwich. In Washington county, the ratio of discrimination which would exist between South Kingstown and Charlestown is slightly more than 6 to 1 in the latter’s favor. The inhabitants of Foster in Providence county would enjoy a disparity advantage four times that of the inhabitants of North Providence.
These are but some of the examples of discrimination which would necessarily result from reapportionment complying with article XIII of amendments. It serves no purpose to burden this opinion with all possible comparisons. It suffices to observe that the examples cited, as well as others which might be, demonstrate a frequency of vote debasement by a ratio of 4 to 1.
The attorney general contends, and petitioners concede, that apportionment along geographical, county, municipal or urban versus rural lines does not necessarily constitute a denial of equal protection if the rationale of such methods can be justified. We are in full accord with such contention, but it is equally true that historical recourse to such apportionment formulae cannot be justified if it results in invidious discrimination. The dilution of the vote of a majority of electors to one fourth of that enjoyed by others is, in our opinion, so unjust as to be invidiously discriminatory.
In Toombs v. Fortson, supra, decided May 25, 1962, a federal circuit court passing on the question of apportion*79ment in Georgia suggested that representation in one house of the general assembly might be capricious, arbitrary and grossly discriminatory if the other chamber were apportioned so as to conform reasonably to population. Whether so sweeping a proposition would be approved by the United States Supreme Court is open to conjecture. Assuming, however, that such might be the case, it is of no assistance in preserving article XIII of amendments in its entirety. By constitutional edict, article XIX. of amendments to the constitution of this state and pursuant thereto chap. 1 of title 22, our senate is likewise apportioned by assuring to each municipality, regardless of its population, a minimum of one seat in the upper chamber. Since the total number of seats in the senate is now 46 as compared with 100 in the house, the discrimination resulting thereby is such as to deny to the apportionment formula for the house the comfort to be derived from the observation made by the federal court in Toombs v. Fortson, supra.
Nor do we derive any aid from the historical fact that article V of our constitution originally ordained the formula which, except for changes not affecting the problem at hand, purportedly continues to be the organic law of this state. That article was adopted in 1842 prior to article XIV of amendments to the federal constitution. When the latter article was approved it became the supreme law of the land and conflicting state constitutional provisions ceased to have any standing even though such conflict did not become the subject of adjudication for years thereafter.
We are constrained to conclude therefore that the limitation of one hundred members and the securing of representation to each municipality, taken together, is.an apportionment formula which when followed results in a denial of equal protection within the meaning of article XIV of amendments as laid down by the United States Supreme Court. This is not to say, however, that neither *80of these provisions can be preserved, nor that article XIII of amendments is void in its entirety.
We are of the opinion that such article validly imposes an obligation on the general assembly to reapportion after every federal or state census whenever it appears therefrom that by reason of population shifts the prevailing apportionment no longer reflects reasonably equitable representation. The use of the verb “may” rather than “shall” was prompted, it seems reasonable to believe, by the fact that any census taken at a future time or times might reveal no necessity to’ reapportion. Whenever such a census does disclose drastic population shifts, however, the obligation on the general assembly is mandatory.
Nothing more than a perfunctory analysis of the 1960 census, revealing the inequities considered herein and the grossly unequal representation as presently distributed among the inhabitants of this state, is required for this court to determine that there now exists an obligation on the general assembly to reapportion conformably to said census and this opinion. The resolution approved April 25, 1962 proposing an amendment to article XIII of amendments cannot be said to comply with such obligation. Assuming that it would receive second passage and be subsequently approved by the people, and both such assumptions are purely speculative, it would fail to correct the basic defect heretofore considered.
Mr. Justice Harlan, dissenting in Baker v. Carr and Scholle v. Hare, supra, lamented a failure of the majority to lay down guide lines or speak definitively on what might constitute apportionment not so invidiously discriminatory as to deny equal protection. We conceive it to be incumbent upon us to' speak so' definitively as to be of assistance to the general assembly which we assume will seek to act in conformity to the legal principles herein enunciated. It is for them and not for this court to reapportion the membership of the house.
*81As heretofore observed the mathematical factor which would make for ideal apportionment among the inhabitants is 8,594. It is contended, however, that an apportionment formula need not be ideal if it is reasonably equitable. We are in complete accord with such contention. Moreover, the general assembly is obligated to conform to so much of article XIII of amendments as does not result in a gross debasement or an impoverishing dilution of some segments of the electorate’s franchise by reason of a residential preference which, although not intended as such, is the inescapable result of representation for every municipality within the limitation of one hundred members.
If the general assembly deems it advisable to provide for municipal representation generally, at the same time retaining the limitation of one hundred members, it is possible to do so by allotting one representative to each municipality having a population in excess of one half of said factor. The more densely populated municipalities would of course be entitled to an additional representative for every 8,594 inhabitants in excess of the total number of inhabitants of the least populated municipality entitled to a single representative. Such an apportionment method would require the consolidation of those municipalities not entitled to a representative into as many representative districts as would result from dividing the total population of said municipalities by a factor approximating the population of the least populated municipality entitled to minimum representation.
Alternately, the general assembly, if they deem it advisable, may ignore the limitation of one hundred members and allot a representative to every municipality, disregarding sparsity of population. This method of apportionment, however, would require enlarging the house so as to provide every city and town with representation based on a population factor of not more than twice the popula*82tion of the least populated town in the state. Both such possible methods presuppose that the legislature would continue to retain the present identity of all thirty-nine cities and towns.
We turn now to a consideration of the questions relating to the relief for which petitioners pray. We do so with a profound comprehension of the problems with which the co-ordinate branches of the government will be confronted as a result of our deliberations.
In the absence of constitutional warrant to the contrary this court has no authority to require the general assembly to meet in special session, nor to require the governor to exercise his constitutional prerogative to call such a session. Furthermore, we are not persuaded that our obligation to resolve the justiciable issues herein considered is so broad as to' require us to hold that the superior court would be warranted in supervising reapportionment of the house of representatives, in the unlikely event that the general assembly should fail to do so. Such a declaration would be in the nature of mandamus by duress. In light of the exclusive prerogative of the general assembly to apportion the membership of the house, we will respect the co-ordinate relationship existing between us.
We do deem it obligatory upon us, however, to observe that if the general assembly fails, within such reasonable time as circumstances may permit, to reapportion the house of representatives consistent with the equal protection guaranteed by the United States constitution, a federal court will probably do so.
We are therefore of the opinion that the superior court should declare that article XIII of amendments vests the general assembly with exclusive jurisdiction to apportion the house; that the obligation to reapportion is mandatory whenever, after a federal or state census, it becomes apparent that the prevailing apportionment constitutes a *83denial of equal protection; and that such an obligation presently exists to reapportion in such manner as to avoid such invidious discrimination as hereinabove discussed.
The record in the cause, with our opinion endorsed thereon, is remanded to the superior court for entry of a declaratory decree in accordance with this opinion.