claims of tested, [40], et seq.

Articles of Faith—consequences of denial of, [10].

Arian heresy and the Church, [53], et seq.

Arianism and Protestantism paralleled, [55], et seq.

Astolphus, King, threatens Rome, [140].

Attila and Pope Leo the Great, [139].

Attributes of Christ—objects of Church's teaching, [16].

Attributes or Notes of the Church imply infallibility, [65].

Authority of the Church derived from God, [65];

absence of, causes dissensions, [97];