_Abraham_, parallel between, and Peter, 17-25, 206, 213-4 _Acts_, division of, 114 state the accomplishment of Christ's promises, 114, 116 history of the mystical body, as the Gospels of the Head, 115 elucidate the institution of the Primacy by showing its execution, 116 and following. _Africa_, Church of, its terms addressing Pope Theodore, 110, 254. _Agatho_, Pope, A.D., 678-682, referred to, 254 states his Primacy in the case of S. Wilfrid, 254 to the Emperor Heraclius and the 6th Council 262. _Alexander_, of Alexandria, referred to, 238. _Ambrose_, St., interprets the name of Peter, 10 terms Peter "the Rock of the Church," 15 "the Apostle in whom is the Church's support," 15 affirms and describes his Primacy, 60 declares, "where Peter is, there is the Church," 62 interprets John xxi. 15-17, of Peter's Primacy, 79 says, "the rights of venerable communion flow from St. Peter's chair as from a fountain head," 216 describes schism as rendering Christ's passion of no effect, 231 and as the unforgiven sin, 231 mentions a Novatian error of restricting the keys to Peter personally, 241, n. assigns the origin of unity to Peter, 242. _Ambrosiaster_, makes Paul's visit an acknowledgment of Peter's Primacy, 164 ranges James and John under Peter, as Barnabas under Paul, 167 sees in Paul's censure of Peter a proof of Peter's Primacy, 171. _Ammianus Marcellinus_, referred to, 255. _Analogy_, between universal and particular churches and the Primate and all bishops, 217 of the body, house, kingdom, city, and fold, with the Church, 2-5, 217 its force as a proof for the Primacy. 251 as a criterion of interpretation, 272. _Anglicanism_, the peculiar inconsistency of, 222-5. _Anglicans_, _Lutherans_, and _Calvinists_, comparative proof for their doctrines and for the Primacy, 259, 274. _Apostles_, their relation to Peter, 28, 70, 75-7, 97-9, 102, 104, 108 their commission as given in Matthew, Mark, Luke, and John, 68 exercise of their powers, 69, 149 how they _sent_ Peter and John, 137 are teachers and judges in controversy, 149 the spirit of truth promised to them and to their successors, 184-189 inequality in the college of, 200 twelve proofs of it, 204-9. _Aquileia_, Fathers of, ascribe the origin of unity to Peter, 242. _Archimandrites of Syria_, call Pope Hormisdas das "Patriarch of the whole world," 216. _Arnobius_, calls Peter, the Bishop of Bishops, 146, 216. _Athanasius St._, states the object of the Incarnation, 27, 180 referred to, on behalf of the principle of tradition, 275.