The schools herein provided for may be established upon farms, within or without the limits of said counties, or at such other places in said counties as shall be selected by the commissioners thereof, with the approval of said board of managers; and for said purpose such counties may acquire as much land as shall, in the judgment of the county commissioners, be necessary for said purpose, by purchase or condemnation, with the same power and under the same procedure as land is now acquired, under existing laws, by school districts for school purposes, the county commissioners exercising the authority exercised by school directors for that purpose.
11 P.S. § 376