For the purpose of establishing an industrial farm the board of supervisors may acquire by condemnation, purchase, lease or donation as many acres of land suitable for agriculture as may be necessary for the purposes of the farm. Such land may be situate within or without the county and may consist of separate parcels. If the land is without the county no industrial farm may be established thereon without the consent of the board of supervisors of the county in which the land is located. The board of supervisors shall erect on such land such buildings and structures and make such improvements and institute such industries as are necessary or convenient to carry out the purposes of this article.