Barbarization of Roman army, 99, 138. Barr Hill, fort at, 106. Batavians, 16, 19, 35, 49, 57, 72. _Beneficiarius_, in an ala, 41; in a cohort, 43. Breastplates, 124. Britain, frontier defences, 109, 112, 141. British regiments, recruiting, 85. _Bucinator_, in an ala, 42; in a cohort, 43. _Canabae_, 117. _Capsarius_, 43, n. 8. _Catafractarii_, 128. Cavalry, use of, 104; superior pay of, 35. Celtic officers, 96. Centurions, 37. Chain armour, 126, 130. Civilis, 20. _Civitas_, granted to auxiliaries, 31 et seqq. _Civitates foederatae_, 57. _Civium Romanorum_, used as a title of auxiliary regiments, 46. _Cohortes equitatae_, 28, 29. „ _miliariae_, 28. „ _quingenariae_, 28. „ _voluntariorum_, 65 et seqq., 187. Cohorts, size of, 27; officers of, 43; titles of, 46 et seqq. _Constitutio Antoniniana_, 122. _Contarii_, 104. _Cornicen_, 43. _Cornicularius_, in an ala, 41; in a cohort, 43. Cretans, 9, 62. _Curator turmae_, 41. „ _alae_ or _cohortis_, 37. _Custos armorum_, 41. Dacia, recruiting of garrison, 77. Decurio, in an ala, 37; in a cohort, 38. Diocletian, military reforms, 136. _Diplomata militaria_, 31 et seqq. _Dromedarii_, 30. _Duplicarius_, 41. _Equites Singulares Imperatoris_, 41 et seqq., 135; recruiting, 81. Face-masks, 127. Frontier defences, 107 et seqq. Gaesati, 86. Gallic regiments, importance of, 64, 81. _Gemina_, used as a title of auxiliary regiments, 47. German frontier, 108. Greek officers, 97. Hadrian, military reforms, 90, 107; speech to army in Africa, 29, 35, 132. Haltern, fort at, 105. Helmets, 125. Hofheim, fort at, 105. Housesteads, fort at, 27, 118. _Imaginifer_, in an ala, 41; in a cohort, 42. _Immunes_, 39 et seqq. Isaurians, 144. Italian officers, 95. Josephus, value of, 102. Legionaries serving as officers in auxilia, 38. Legions, recruiting of, 78, 80; connexion of, with auxilia, 49-51. _Librarius_, in an ala, 41; in a cohort, 43. Married soldiers, position of, 119. Mauri, 89, 128, 135. _Medicus_, in an ala, 42; in a cohort, 43. _Medicus ordinarius_, 43. _Mensor_, 43. Mounted Infantry, 29. Newstead, fort at, 27, 106, 127. _Notitia Dignitatum_, 138. _Numeri_, 85 et seqq., 128, 131. Numidians, 10. _Optio_, in an ala, 41; in a cohort, 42. Oriental regiments, recruiting of, 82 et seqq. Osroeni, 135. Palmyreni, 88. Pannonia, recruiting of garrison, 71, 75 et seqq. Pay, 35. _Praefecti_, 91 et seqq. _Praefectus alae_, 36. „ _cohortis_, 36. „ _equitum_, 23, 24. „ _numeri_, 87. _Praepositus_, 37. Praetorians, 34, 135. _Principales_, 39 et seqq. Roman citizens serving auxilia, 33.