35-512.Districts; warrants; amount authorized; rate of interest.All warrants for payment of any indebtedness of a rural fire protection district which are unpaid for want of funds shall bear interest at a rate specified by the issuing district and endorsed on the warrant, from the date of the registering of such unpaid warrants with the county treasurer; Provided, that the amount of such warrants does not exceed the revenue provided for the year in which the indebtedness was incurred.SourceLaws 1939, c. 38, § 9, p. 194; C.S.Supp.,1941, § 35-609; R.S.1943, § 35-409; Laws 1949, c. 98, § 12, p. 267; Laws 1969, c. 51, § 102, p. 336.