The manner of effecting the change in the government of any such city from the form of government under which it is operating to the council-manager plan of government shall be as follows:

One or more petitions, similar in form and substance, addressed to the mayor, praying that an election be held to determine whether or not such city shall abandon its existing form of government and become organized under a council-manager plan of government, signed by at least ten percent (10%) of the qualified electors of such city, shall be filed with the city clerk, who shall within ten (10) days thereafter check the signatures thereto with the registration books of the city and attach thereto his certificate showing the total number of qualified electors in said city, and the total number of signatures to said petitions and deliver the same to the mayor.

If, on the delivery of such petition to the mayor, it shall appear that such petition or petitions have not been signed by the required number of qualified electors of such city, the mayor shall at once certify such fact and immediately return such petition or petitions to the person or persons presenting the same, who may thereafter procure additional signers thereto and again file such petition or petitions with the city clerk, as above provided, as an original petition.

If it shall at any time appear from the certificate of the city clerk that said petition or petitions have been signed by the required number of qualified electors of said city, the mayor shall immediately refer the same to the city council or board and if it shall appear that said petition or petitions are in proper form and have been sufficiently signed by the qualified electors of such city, the council or board shall within five (5) days order and provide for the holding of a special election in such city not less than twenty (20) days nor more than sixty (60) days from the date of making such order, notice of which shall be given, and the same shall be held and conducted as other elections in such city. At such special election the propositions to be voted for shall be: (1) “FOR THE PRESENT FORM OF GOVERNMENT” and “FOR THE COUNCIL-MANAGER PLAN OF GOVERNMENT,” and (2) “FOR COUNCILMEN ELECTED AT LARGE” and “FOR COUNCILMEN ELECTED BY WARDS,” which propositions shall be printed on the official ballot at such election.