[137] Tac. Ann. iv. 47.
[138] In these cases an ethnical title may have been dropped, or omitted on the only inscriptions known to us.
[139] iii. 11930, 11931 (reign of Pius), 11933 (Commodus).
[140] Tac. Hist. i. 59.
[141] For the position of the auxilia in the normal order of battle see below, [p. 103]. For Domitius Tullus and Domitius Lucanus, who held in turn the post of praefectus auxiliorum omnium adversus Germanos, probably in 73 and 74, see Dessau, Inscr. Lat. Sel. 990, 991, with notes.
[142] D. xxx and xxxi.
[143] D. xxxii and xxxiv.
[144] D. xliii.
[145] The diplomata of 133, 138, 148, 149, and 154 (D. xlvii, li, lx, lxi, and lxv) contain, on an average, ten regiments each. Four regiments are always present, and five more occur in four diplomata out of the five. This makes it sufficiently clear that, on the theory given above, the auxilia of the same legion must always be referred to, particularly in view of the immobility of the frontier troops in the second century (see below, [pp. 114-16]), which forbids the supposition that the same regiments would appear first attached to one legion, then, after a few years’ interval, to another.
[146] The earliest I know of is legio III Augusta et auxilia eius, which dates from 158. viii. 2637. Other instances are a dedication at Bonn by legio I Minervia pia fidelis Severiana Alexandriana cum auxilis (xiii. 8017), and a Pannonian inscription of the reign of Gallienus which mentions vexillationes legionum Germaniciarum et Brittanniciarum (at least this seems to be intended) cum auxilis earum. iii. 3228. The formula is certainly a rare one.