The Tribune of the fourth cohort of the Lingones[26] at Segedunum. The Tribune of the cohort of the Cornovii at Pons Ælii. The Prefect of the first ala, or wing, of the Astures[27] at Condercum. The Tribune of the first cohort of the Frixagi at Vindobala. The Prefect of the Savinian ala at Hunnum. The Prefect of the second ala of Astures at Cilurnum. The Tribune of the first cohort of the Batavians at Procolitia. The Tribune of the first cohort of the Tungri at Borcovicus. The Tribune of the fourth cohort of the Gauls at Vindolana. The Tribune of the first cohort of the Astures at Æsica. The Tribune of the second cohort of the Dalmatians at Magna. The Tribune of the first cohort of Dacians, styled Ælia, 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 Lergi at Congavata. The Tribune of the first cohort of the Spaniards at Axelodunum. The Tribune of the second cohort of the Thracians at Gabrosentis. The Tribune of the first marine cohort, styled Ælia, at Tunnocelum. The Tribune of the first cohort of the Morini at Glannibanta. The Tribune of the third cohort of the Nervii 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 Nervii at Virosidum. [Sidenote: THE CORROBORATION OF LETTERED STONES.] It is not said, nor does it appear, that all these twenty-three stations were exactly upon the line of the Wall itself. It is very plain indeed, says Horsley, that according to the Notitia, SEGEDUNUM was the first, for that immediately follows the title _per lineam valli_; but he has not told us expressly at what place or station they end.[28] Those stations which were not on the Wall were probably in its vicinity, and were connected with it by military ways. The stations in this list are manifestly, as this writer also observes, set down in some order, and those that were near to each other are placed together;[29] so that if we ascertain the identity of some of them, we may form a pretty correct estimate of the position of the intermediate or neighbouring stations. [Illustration]