AN OLD OIL MILL. At the foot of the western end of the "Mine Ridge," thereabouts better known as "Stony Hill," and in the northwest corner of Eden township, near the old Conowingo ore mines, and about half a mile east of Camargo, on a branch of Beaver creek, stands a large, quaint old stone

turnpike and creek and this latter spelling was used by Prof. S. S. Haldeman in the later years of his life for the headings of his communications. He also gave the latter as correct to Prof. Persifer Frazer, Jr., geologist in charge of the survey of Adams, York, Lancaster and Chester counties, for the