It may be of interest to insert here a few directions for any investigator who wishes to track out the Roman Wall. Such a traveller might profitably visit first the Museum at Newcastle, where many memorials are preserved. There might be included the Castle Keep and Chapel, with its richly-moulded Norman arches and the Black Gate, with the collection of Roman inscribed and sculptured stones from the eastern fortresses on the Wall between Bowness and Wallsend. The numerous carved altars are especially noticeable. From Newcastle the road can be taken alongside the Wall to Chollerford, by way of Denton Burn, Wallbottle, Heddon on the Wall, Vindobala, Harlow Hill, Wallhouses, Halton Shields Hunnum, Stagshaw Bank, and so, by a steep descent, into Chollerford. If the train be taken, it is expedient to break the journey at Prudhoe to view the ruins of the Castle, built in the reign of Henry II. The curious old bridge over a ravine is one of the oldest in the North. From Prudhoe to Corbridge is twenty minutes or so by rail. The buried city of Corstopitum lies to the west of Corbridge. There can be traced the Forum, streets, granaries, baths, and fountain. The excavations conducted during 1908 and the two following years are deeply interesting. There are Roman altars and monuments to be seen at Hexham. Close to Chollerford are the remains of the remarkable Roman bridge over the Tyne. Cilurnum (Chesters), the largest station on the Wall, lies on the river bank. In the Museum by the gates are deposited sculptured stones, vases, etc., discovered hereabouts. Journeying from Brunton to Limestone Bank, one finds the fosses and vallum exceptionally perfect. On the whole there are said to have been about 23 important stations on the Wall, named as follows:--Segedunum (Wallsend), Pons Aelii (Newcastle), Condercum (Benwell Hill), Vindobala (Rutchester), Hunnum (Halton Chester), Cilurnum (Chesters), Procolitia (Carrawburgh), Borcovicus (House-steads), Vindolana (Chesterholm), Aesica (Great Chesters), Magna (Carvoran), Amboglanna (Birdoswald), Petriana, Aballaba, Congovata, Axelodunum, Gabrosentum, Tunocelum, Glannibanta, Alionis, Bremetenracum, Olenacum, and Virosidum. It is noteworthy that not a trace of the original names survives in the local nomenclature of to-day, though the exact position of most of the stations has been made out from other indications. It will be seen that one Wall extended from Wallsend on the Tyne to Bowness on the Solway Firth, a distance of 73 miles. It would have been about 12 feet high and 6 feet thick, in parts 9-1/2 feet thick. Probably about 10 years were expended in the building. About 10,000 men would be required adequately to garrison its stations. It is difficult to believe that it was constructed _de novo_, or all at one time. Probably a line of stations, suggested by the lie of the country, existed here before Roman times, which line was extended and consolidated by successive Roman generals and emperors.