The board of supervisors shall adopt an order calling and providing for a bond election, which order shall state:
(a) The purpose or purposes for which the indebtedness is to be incurred.
(b) The amount of bonds proposed to be issued.
(c) The maximum rate of interest.
(d) The date of the election.
(e) The manner of holding the election and the procedure for voting for or against the proposition.
(Amended by Stats. 1957, Ch. 141.)