CORNHILL, a chapelry in the parish of NORHAM, otherwise Norhamshire, county palatine of DURHAM, 11 mile (E. by S.) from Coldstream, containing 863 inhabitants. The living is a perpetual'curacy, in the archdeaconry of Northumberland, and diocese of Durham, endowed with £400 private benefaction, and £400 royal bounty, and in the patronage of the Vicar of Norham. The chapel, dedicated to St. Helen, was rebuilt in 1751, when a stone coffin, containing fragments of a human skeleton, and two urns of coarse earthenware, were found: in an adjoining wood is a well called St. Helen's Well, the water of which'is serviceable in scorbutic and gravel complaints, but is not much used; a neat cold bath has been erected near it. A fair is held annually on the 6th of December. The castle was demolished by the Scots in 1385, and again in 1549, when a considerable booty fell into their possession: the remains consist of a tower surrounded by a ditch. Here are some medicinal springs. To the south-east is an encampment of unusual construction, the outworks having been mistaken for tumuli, the history of which has baffled the enquiries of different writers; and a quarter of a mile west is another large camp, the most remarkable north of the wall for variety and extent.