That upon the filing of an application with the board of county commissioners for the formation of said drainage district the county clerk shall cause a notice to be published in the official county paper, setting forth the fact of the filing of said application, the boundaries of said district and the date when the application will be heard, and apprize all persons interested that they may be heard at the time and place designated. Said notice shall be published once, and not less than five days before the date set for said hearing. Said notice shall further state the hour and place where said application will be heard by said board of commissioners. Said board of county commissioners shall hear said application at the date stated in said notice, or may for cause continue same for any period not exceeding ten days, but not more than three continuances shall be had by said board.