The board of county commissioners is hereby authorized to make an annual tax levy on all taxable tangible property of the county for the purpose of providing a fund to be used for the maintenance and care of any cemetery acquired under the provisions of this act and for the purpose of obtaining additional land for any such cemetery and to pay a portion of the principal and interest on bonds issued under the authority of Kan. Stat. Ann. § 12-1774, and amendments thereto, by cities located in the county.