_Apology_ of Aristides, on Burial of the dead by Christians, 132, 133; on Christian charity, 124 & _n._ 1, 126, 130, 138; on Christians as civil judges, 148; on Hospitality, 128; on Slavery, 135 _Apology_, or _Embassy_, of Athenagoras, on Persecution, 188-9 _Apology_ of Tertullian, and the _Octavius_ of Minucius Felix, 186 Apostasy, encouraged by Roman rulers, 195, 197; Hermas on, 181; results of, 197, 203; some causes, 201 _Apostolical Constitutions, The_, on Almsgiving, 122; on Hospitality, 128 Apostolic Fathers, writings of, cast in Letter form, 73 _Apostolic Fathers_, by Lightfoot, _cited_ on Pliny’s Letters, 46 _n._ 1; on S. Hippolytus, 251 Apostolic remains, authors and form of, 73; characteristics and special value of, _ib._, meant for publication, 74 _& n._ 1 Apronienus, catacomb of, 248 Aquila and Priscilla, associations of, with S. Paul, and with Pudens, 265-6; burial-place of, 262, 266; church founded by, 262 Arch of Titus, witness of, 333 _& n._ 1 Archæological Relics of S. Peter, Chair, and place of baptism, 12 Archæology, witness of, to literature and tradition (_see also_ Catacombs), 17, 19 _n._ 1, 81, 82, 108, 147, 152 _n._ 1, 209 _et seq._, 289, 295, 298, 304 to Pagan and Christian views on Death, 154-5 to Social Status of many early Christians, 111-2 Arenaria, in Jordani catacomb, 260 Aristides, _see Apology_ of, _supra_ Aristotle, works of, 146 Arles, Church of S. Hippolytus at, 255 Armellini, Prof., on Inscription concerning S. Agnes, 256-7; Ubaldi’s memoranda published by, 281; work of, in Catacomb exploration, 239 Army, Christians in, 148 _& n._ 1 Arnold, Matthew, on the Good Shepherd with the Kid, 320 Arsacius, Letter to, from Emperor Julian, on Christian characteristics, 123 _n._ 1, 128, 131 Arval Brotherhood, College of, 236; M. Aurelius a member, 95 _n._ 1 Asia, Christian congregations in, mid-second century, 36 Asia Minor (_see also_ Antioch, &c.), 71 Christianity in (_see also_ Pliny’s Letter), founder, and effects on Paganism, and spread of, 51, 107 S. John’s prominence in, 9 Assemblies, Christian, composition of, 110-12, 113, 114, 240, 242 Importance of, 101; evidenced in literary references, 107-9 Joy in, 155 Places where held (_see also_ Catacombs), 139 Proceedings at, various writers _cited_, 113 _et seq._ References to, in N.T. and later writers, Christian and Pagan, 107 _et seq._ Sunday, 108; observance of, Justin Martyr on, 113-4 Teaching, doctrines and ritual at, 101, 113 _et seq._, 124, 126, 128-30, 131-3, 138, 139 Astolphus, 293 Athenagoras, 319 _n._ 1; on Persecutions, 188-9