Lost works include two books on the Resurrection, written before On First Principles, and also two dialogues on the same theme dedicated to Ambrose. Eusebius had a collection of more than one hundred letters of Origen,Historia ecclesiastica, VI, xxxvi.3; Eng. transl. NPNF, 2 ser. i.278–279. and the list of Jerome speaks of several books of his epistles. Except for a few fragments, only three letters have been preserved. The first, partly preserved in the Latin translation of Rufinus, is addressed to friends in Alexandria. The second is a short letter to Gregory Thaumaturgus, preserved in the . The third is an epistle to Sextus Julius Africanus, extant in Greek, replying to a letter from Africanus (also extant), and defending the authenticity of the Greek additions to the book of Daniel.
Lost works include two books on the Resurrection, written before On First Principles, and also two dialogues on the same theme dedicated to Ambrose. Eusebius had a collection of more than one hundred letters of Origen,Historia ecclesiastica, VI, xxxvi.3; Eng. transl. NPNF, 2 ser. i.278–279. and the list of Jerome speaks of several books of his epistles Except for a few fragments, only three letters have been preserved. The first, partly preserved in the Latin translation of Rufinus, is addressed to friends in Alexandria. The second is a short letter to Gregory Thaumaturgus, preserved in the . The third is an epistle to Sextus Julius Africanus, extant in Greek, replying to a letter from Africanus (also extant.), and defending the authenticity of the Greek additions to the book of Daniel.