Section 475. Clerk of the board; term; duties

1. The board of supervisors
  shall appoint a clerk who shall serve during the pleasure of  the  board
  and until his successor is appointed and has qualified.
    2.  The  clerk  shall keep a record of all acts and proceedings of the
  board and be the custodian of the records,  vouchers  and  other  papers
  required  or  authorized by law to be deposited in his office.  He shall
  have custody of all policies of insurance of all types  carried  on  the
  corporate  property  of  the  county  and  shall  keep a record properly
  indexed showing the property,  name  of  insurance  carrier,  amount  of
  insurance  and  date of expiration of all policies. He shall prepare the
  tax rolls, except when otherwise directed by the board  of  supervisors.
  He shall perform such additional and related duties as may be prescribed
  by law and directed by the board of supervisors.