The Tribune of the first cohort of the Tungrians at Borcovicus.
The Tribune of the fourth cohort of the Gauls at Vindolana.
The Tribune of the first cohort of Asturians at Aesica.
The Tribune of the second cohort of Dalmatians at Magna.
The Tribune of the first cohort of Dacians, styled Aelia, at Amboglanna.
The Prefect of the _ala_ called "Petriana," at Petriana.
The Prefect of a detachment of Moors, styled Aureliani, at Aballaba.
The Tribune of the second cohort of the Lingones at Congavata.
The Tribune of the first cohort of Spaniards at Axelodunum.
The Tribune of the second cohort of the Thracians at Gabrosentum.
The Tribune of the first marine cohort, styled Aelia, at Tunnocelum.
The Tribune of the first cohort of the Morini at Glannibanta.
The Tribune of the third cohort of the Nervians at Alionis.
The Cuneus of men in armour at Bremetenracum.
The Prefect of the first _ala_, styled Herculean, at Olenacum.
The Tribune of the sixth cohort of the Nervians at Virosidum.
Of these stations, with their officers and troops, only those as far as Magna are in Northumberland; the rest continue the chain of defences across Cumberland to the Solway Firth. Besides these stations, there were _castella_ at the distance of every Roman mile (seven furlongs) along the Wall, from which circumstance they are known as "mile-castles." They provided accommodation for the troops necessary between the stations, which were at some distance from each other; and between each two _castella_ there were also erected two turrets, so that communication from one end of the Wall to the other was speedy and certain.
All traces of the station of Segedunum (Wallsend) have long since disappeared; the Wall from there, beginning actually in the bed of the river, ran almost parallel with the N.E.R. Tynemouth Branch, a little to the south of it, and climbing the hill to Byker, went down the slope to the Ouseburn parallel with Shields Road, crossing the burn just a little to the south of Byker Bridge. From there its course has been traced to Red Barns, where St. Dominic's now stands, to the Sallyport Gate, and over the Wall Knoll to Pilgrim Street; thence to the west door of the Cathedral, and on past St. John's Church, up Westgate Road.