An initiatory or a referendary petition shall be signed by not less than fifteen per cent of the vote cast in the City for Governor at the most recent election for that office. All signatures on any such petition shall be obtained within thirty days before the date of filing the petition with the Clerk. Before being circulated for signatures, all such petitions shall be approved as to form by the City Attorney. Each such petition shall be addressed to the Council. No such petition need be on one paper, but may be the aggregate of two or more petition papers which are identical as to contents, except as to the signatures thereon. An initiatory petition shall set forth, in full, the ordinance it proposes to initiate. No petition shall propose to initiate more than one ordinance.
A referendary petition shall identify the ordinance it proposes to have repealed.
Each signer of a petition shall sign his name and shall place thereon, after his name, the date and his place of residence by street and number or by other customary designation. To each petition paper there shall be attached a sworn affidavit by the circulator thereof, stating the number of signers thereof, that each signature thereon is the genuine signature of the person whose name it purports to be, and that it was made in the presence of the affiant. Such petition shall be filed with the Clerk, who shall, within ten days, canvass the signatures thereon. If the petitions do not contain a sufficient number of signatures of registered electors of the City, the Clerk shall notify the person filing such petitions forthwith, and ten days from the date of such notification shall be allowed for the filing of supplemental petition papers. When petitions with sufficient signatures have been filed within the time allowed by this Section, the Clerk shall present the petition to the Council at its next regular meeting.