Offerings, [41].

Optatus, on sacraments and the Catholic Church, [446] f.

Orange, council of (A. D. 529), canons of, against Pelagianism, [472-476].

Ordination, of clergy, [41];

of bishops, [239].

Origen, [144], [153];

on eternal generation of the Son, [193];

eternal creation, [194];

pre-existence of souls, [195];