Athanasius elsewhere calls him ‘the admirable and excellent.’ ad Serap. iv. 9. He was Master of the Catechetical school of Alexandria towards the end of the third century, being a scholar, or at least a follower of Origen. His seven books of Hypotyposes treated of the Holy Trinity, of angels, and evil spirits, of the Incarnation, and the Creation. Photius, who gives this account, Cod. 106, accuses him of heterodoxy on these points; which Athanasius in a measure admits, as far as the wording of his treatise went, when he speaks of his ‘investigating by way of exercise.’ Eusebius does not mention him at all. [His remains in Routh, Rell. iii. 409–414.]