mentioned by Ebed-Jesu, i.e. about the Book of Heraclides. Also the Letter addressed to Cosmas mentioned third by Ebed-Jesu had to be counted and is still to be counted as lost[1]. Of the three other works ascribed by Ebed-Jesu to Nestorius we had and still have only fragments—occasional quotations in the works of his enemies and his friends.
Among the hostile writings in which we find such fragments are to be named especially the works of his chief opponent Cyril of Alexandria; then the proceedings of the council of Ephesus; then some works of Marius Mercator, a Latin writer who in the time of Nestorius lived in Constantinople and translated a series of quotations from Nestorius given by Cyril, three letters of Nestorius and also, but with considerable omissions, nine of his sermons; finally the church history of Evagrius (living about 590). The latter gives us[2] an account of two works of Nestorius dating from the time of his exile, one of which must be the Tragedy, while the other could not be identified up to the last ten years, and he inserts in his narration extracts from two interesting letters of the banished heretic. Among the friends who preserved for us fragments of Nestorius the Nestorians of later date played a very unimportant part. Important is a Latin work which has connection with the earliest friends of Nestorius, the so-called