They shall have the exclusive control of all moneys collected for such library and deposited to the credit of the Library Fund, and of the construction of any library building, and of supervision, care and custody of the grounds, rooms or buildings constructed, leased or set apart for that purpose. All moneys received for such library shall be deposited in the treasury of said city to the credit of the Library Fund and shall be kept separate and apart from other moneys of such city. It shall be the duty of the Board of Directors of such library to deposit all such moneys paid over to it in a fund to be known as the Library Fund. Such Fund may be drawn upon by vouchers of the Library Board.
(2000 Code, § 32.049)