Upon the application of any person who may have settled and improved, or is desirous to settle and improve, a plantation within the limits aforesaid, to the secretary of the land office, which application shall contain a particular description of the lands applied for, there shall be granted to him a warrant for any quantity of land within the said limits, not exceeding four hundred acres, requiring the surveyor general to cause the same to be surveyed for the use of the grantee, his heirs and assigns forever, and make return thereof to the surveyor general's office, within the term of six months next following, the grantee paying the purchase money, and all the usual fees of the land office.
64 P.S. § 135