§ 10. Enactment of ordinance.

The council shall legislate by ordinance only, and the enacting clause of every ordinance shall be "Be It Ordained By The City Council of the City of Jacksonville." Before any ordinance shall be adopted, the city attorney shall approve such ordinance in writing or shall file with the city secretary his written legal objections thereto. Every ordinance enacted by the council shall be signed by the mayor, mayor pro tem, or by two (2) councilmen, and be filed with and recorded by the city secretary before the same shall become effective. Unless otherwise provided by law or this charter, no ordinance shall become effective until the expiration of ten (10) days following the date of its final passage, except where an ordinance relating to the immediate preservation of the public health, peace or safety, is adopted as an emergency measure by the favorable votes of four (4) or more of the councilmen and contains a statement of the nature of the emergency.