And whereas balks, slades or meers which may be waste, do often lie very inconveniently interspersed amongst the arable lands in common fields, it shall and may be lawful to and for any person or persons whomsoever having land in any open or common fields adjoining to any such balks, slades or meers, being waste, with the consent of the lord or lords, lady or ladies of the respective manors wherein such balks, slades or meers do lie, and likewise of the person or persons who may have a separate sheep walk in the said fields, and with the consent of three-fourths in number and value of the occupiers of such common field lands, to be signified at any meeting to be held in manner aforesaid, to plough up any of the said balks, slades or meers and convert the same into tillage under the regulations to be settled as aforesaid.