When any junior college district in which the junior college campus is located in a county having a population in excess of two hundred thousand (200,000) according to the 1970 federal decennial census, owns lands adjacent to lands owned by any county forming a part of such district, the board of trustees of any such district and the board of supervisors of any such county may make such exchanges of land and may execute such instruments perfecting the title of the county and that of the district as they, by appropriate resolutions, may find proper, all without the necessity of advertisement for or receiving bids.