We have now brought to a close all the circumstantial part of the public life of Irenæus. Eusebius(98) (who is followed by Jerome(99)) has preserved to us the names of others of his writings, which we have now lost. Of these he mentions first, _A Discourse to the Gentiles_, which he characterizes as _very brief, and very necessary_, or _cogent_, and informs us that the title of it was Περὶ Ἐπιστήμης, which Jerome, in his _Catalogue_, translates _De Disciplina_, and supposes it to be different from the _Discourse_. Another tract he wrote, dedicated to one Marcianus, _On the Preaching of the Apostles_. The last Eusebius mentions is a volume of _miscellaneous tracts_ or _discussions_, of which the ninth fragment is probably a remnant. The _Discourse concerning Easter_, quoted by the author of the _Questions to the Orthodox_(100), formerly ascribed to Justin Martyr, may have been his letter to Victor on that subject. Maximus(101) cites some _Discourses on Faith_, addressed to Demetrius, a deacon of Vienne, of which we have two fragments, whether genuine or not, (numbered IV. and V.) in the best editions of his Remains. Although forty‐two fragments, attributed to Irenæus, have been collected, chiefly from Catenas, we have no clue for appropriating the greater part of them to the writings of which they formed a portion. One of them (the last in the Benedictine edition) is said to pertain to a discussion _on the Eternity of Matter_; but whether belonging to a separate treatise, or a remnant of his _Discourse to the Gentiles_, we have no means of judging. We have no account of the death of Irenæus upon which we can absolutely depend. Jerome in one passage(102) calls him a martyr, and so does the author of the _Questions and Answers_ above cited; but no other early writer gives him that appellation; neither have we any notice of his death by any earlier author than Gregory of Tours(103), who wrote towards the end of the sixth century, and who asserts that he died a martyr in a bloody persecution, which the martyrologists Usuard and Ado(104) assert took place under Severus. In fact all the martyrologists, both Latin and Greek, make him a martyr. The tradition, therefore, appears a highly probable one. But in whatever way he quitted this world, we may rest assured that his name is written in the book of life. His body is said(105) to rest in the crypt under the altar of the Church of St. John at Lyons. CHAPTER II. TESTIMONY OF IRENÆUS TO CERTAIN FACTS OF CHURCH HISTORY.