The land office shall be opened, for the lands already purchased from the Indians, on the first day of July next, at the rate of ten pounds for every hundred acres, with the usual fees of granting, surveying and patenting, excepting such tracts as shall be surveyed westward of the Allegheny mountain, which shall be three pounds ten shillings, and no more; and that the several officers of the land office are hereby fully empowered and directed to do and perform every act and thing incident, or in any wise appertaining, to their said offices, with respect to receiving, filing and entering locations, granting warrants on the same, receiving the consideration, directing copies of warrants, or other rights, receiving returns, and issuing patents of confirmation as heretofore, agreeable to the former customs and usages of the said offices.
64 P.S. § 61