Title: Vallum Romanum; or, The history and antiquities of the Roman Wall, commonly called the Picts Wall in Cumberland and Northumberland, built by Hadrian and Severus, the Roman Emperors, seventy miles in length, to keep out the northern Picts and Scots... to which are added two letters from the late Hon. and learned Roger Gale, to the compiler, relating to Roman antiquities in the North of England..