Note 13 — Chapter III · Criticism of The Accepted View

That this was the custom followed for the socii and auxilia during the period of the republic is suggested by Pliny, N. H., 25, 33, 6, and the same general proportion seems to have been observed later, as Tacitus, Ann., IV, 5, in speaking of the “sociae triremes alasque et auxilia cohortium,” adds, “neque multo secus in numero virium.” Detailed information regarding the size of these auxiliary contingents is nowhere given. See Liebenam, art. “Exercitus,” Pauly-Wiss., VI, 1601, 1607. G. L. Cheesman (The Auxilia of the Roman Imperial Army, Oxford, 1914 p. 53 ff.) finds that the auxilia under Augustus were at least as numerous as the legionaries, and later became more so. He calculates 180,000 for the year 69 A. D., and 220,000 for the middle of the second century A. D. Cf. also Delbrück, op. cit., II, p. 203 (2nd ed.).