The resolution required by Section 18-3 shall contain the date, hour and place of public hearing where protest shall be heard and notice that all persons interested may file written objections with the City Clerk prior to such time set for hearing, and may personally appear at such hearing. A general description shall be given of the improvement to be made or the property to be acquired and it shall set forth the state law or City regulation under which such improvement or acquisition is intended to be made.