311.12  Publication of notice.
  The notice shall be published as provided in section 331.305 in the county as near as practicable to the district. Proof of the publication shall be made by the publisher by affidavit filed with the county engineer.
[C24, §4707; C27, 31, 35, §4753-a1; C39, §4753.01; C46, §311.11; C50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, S81, §311.12; 
81 Acts, ch 117, §1213
]
87 Acts, ch 43, §8