Note 86 — THE AUXILIA DURING THE FIRST TWO CENTURIES A.D.
Reading edition
Tac. Hist. ii. 89 ‘Quattuor legionum aquilae per frontem totidemque circa e legionibus aliis vexilla, mox duodecim alarum signa et post peditum ordines eques; dein quattuor et triginta cohortes, ut nomina gentium aut species armorum forent, discretae’.