Chapter XIV: Section 11: It shall be the purpose of every State industrial farm to

employ the prisoners committed, or transferred thereto, in work on or about the buildings and farm, and in growing produce and supplies for its own use, and for the other institutions of the Commonwealth, in the preparation of road materials and in making brick, tile, paving material, and such other products or materials as may be found practicable for the use of the Commonwealth, or any political subdivision therein, and in other industries which may be approved by the board of managers of the State industrial farm and the Committee on Delinquency of this Commonwealth. Should any State industrial farm produce supplies or materials in excess of its needs and demands, or in excess of the demands of the Commonwealth, or of any political subdivision thereof, such surplus may be sold by the Committee on Delinquency at the prevailing market price.