All or any portion of a bond reserve fund may be established out of the proceeds of the sale of said bonds. In such case the estimate referred to in Section 35950 shall include or make provision for such bond reserve fund and the ballot cast at the bond election shall contain a statement to the effect that all or part of said bond reserve fund is to be established from the proceeds of said bonds. Upon the delivery of and payment for said bonds, the portion of the proceeds provided for said bond reserve fund shall be set aside therein.