The petition for the adoption of any ordinance shall consist of the ordinance, together with all the signature papers and affidavits thereto attached. Such petition shall not be complete unless signed by a number of voters equal to at least fifteen per cent of the total number of votes cast in the municipality at the last preceding presidential year general election. All the signatures need not be on one signature paper, but the circulator of every such paper shall make an affidavit that each signature, appended to the paper is the genuine signature of the person whose name it purports to be. Each signature paper shall be in substantially the following form:
“INITIATIVE PETITION
“proposing an ordinance to (stating the purpose of the ordinance), a copy of which ordinance is hereto attached. This ordinance is sponsored by the following committee of electors:
Name Address
1. ______________________________________________ ______________________________________________
2. ______________________________________________ ______________________________________________
3. ______________________________________________ ______________________________________________
4. ______________________________________________ ______________________________________________
5. ______________________________________________ ______________________________________________
“The undersigned electors, understanding the terms and the nature of the ordinance hereto attached, petition the council for its adoption, or, in lieu thereof, for its submission to the electors for their approval.
1. ______________________________________________ ______________________________________________
2. ______________________________________________ ______________________________________________
3. ______________________________________________ ______________________________________________
At the end of the list of signatures shall be appended the affidavit of the circulator.