Epiphanius, following Methodius, insisted on the most perfect identity between the resurrection body and the material body; and this belief, enforced in the West by Jerome, soon established itself as alone orthodox. Augustine made experiments on the flesh of a peacock in order to find physical evidence for the doctrine. He held fast to eternal punishment, but allowed the possibility of mitigations. Some believers, he taught, may pass through purgatorial fires; and this middle class may be helped by the sacraments and the alms of the living. "There are many souls not good enough to dispense with this provision, and not bad enough to be benefited by it" (op. cit. v. 233). This doctrine was sanctioned and developed by Gregory the Great. "After God has changed eternal punishments into temporary, the justified must expiate these temporary penalties for sin in purgatory" (p. 268). This view was inferred indirectly from Matt. xii. 31, and directly from 1 Cor. iii. 12-15. Afterwards purgatory took more and more the place of hell, and was subject to the control of the church. As regards the saints, different degrees of blessedness were recognized; they were supposed to wait in Hades for the return of Christ, but gradually the belief gained ground, especially in regard to the martyrs, that their souls at once entered Paradise. The primitive Christian eschatology was preserved in the West as it was not in the East, and in times of exceptional distress the expectation of Antichrist emerged again and again. In the middle ages there was an extravagance of speculation on this subject, which may be seen in the last division of Aquinas' _Summa Theologiae_. He proposes thirty questions on these matters, among which are the following: "whether souls are conducted to heaven or hell immediately after death"; "whether the limbus of hell is the same as Abraham's bosom"; "whether the sun and moon will be really obscured at the day of judgment"; "whether all the members of the human body will rise with it"; "whether the hair and nails will reappear"; could thought become "more lawless and uncertain"? In Protestant Theology.