the first three Chapters of Ecclesiastes_, _On Canticles_, _On the Lord's Prayer_ and _On the Eight Beatitudes_. (4) Biographical, consisting chiefly of funeral orations. (5) Letters. The only complete editions of the whole works are those by Fronton le Duc (Fronto Ducaus, Paris, 1615; with additions, 1618 and 1638) and by Migne. G. H. Forbes began an excellent critical edition, but only two parts of the first volume appeared (Burntisland, 1855 and 1861) containing the _Explicatio apologetica in hexaemeron_ and the _De opificio hominis_. Of the new edition projected by F. Oehler only the first volume, containing the _Opera dogmatica_, has appeared (1865). There have been numerous editions of several single treatises, as for example of the _Oratio catechetica_ (J. G. Krabinger, Munich, 1838; J. H. Crawley, Cambridge, 1903), _De precatione_ and _De anima et resurrectione_. See F. W. Farrar, _Lives of the Fathers_, ii. 56-83, the monograph by J. Rupp (_Gregors, des Bischofs von Nyssa, Leben und Meinungen_, Leipzig, 1834), and compare P. Heyns (_Disputatio historico-theologica de Greg. Nyss._, 1835), C. W. Moller (_Gregorii Nyss. doctrinam de hominis natura et illustravit et cum Origeniana comparavit_, 1854) and J. N. Stigler, _Die Psychologie des h. Gregors von Nyssa_ (Regensburg, 1857), and many smaller monographs cited in Hauck-Herzog's _Realencyk. fur prot. Theol._ vii. 149. GREGORY, ST, OF TOURS (538-594), historian of the Franks, was born in the chief city of the Arverni (the modern Clermont-Ferrand) on the 30th of November 538. His real name was Georgius Florentius, Georgius being his grandfather's name and Florentius his father's. He was called Gregory after his maternal great-grandfather, the bishop of Langres. Gregory belonged to an illustrious senatorial family, many of whose members held high office in the church and bear honoured names in the history of Christianity. He was descended, it is said, from Vettius Epagathus, who was martyred at Lyons in 177 with St Pothinus; his paternal uncle, Gallus, was bishop of Clermont; his maternal grand-uncle, Nicetius (St Nizier), occupied the see of Lyons; and he was a kinsman of Euphronius, bishop of Tours.