Notice of said election shall state the amount and maturities of the proposed bonds and in general terms the objects for which said bonds are to be issued, shall specify any precincts and the location of any polling places other than the regular county precincts and polling places therein, shall state that the polling places will be open from eight o'clock a.m. to eight o'clock p.m. on the day of said election and shall be signed by the clerk of said respective county election boards.