§6. Patristic Monographs . (a) Among the very numerous works of this kind, the most useful for our purpose are Zahn , Marcellus von Ancyra , 1867, very important for doctrinal history; Reinkens , Hilarius von Poitiers , 1864; Fialon , St. Basile , 1868; Ullmann , Gregorius von Nazianz (2 ed., 1867, part of earlier ed. trans. by Cox, 1855); Krüger , Lucifer von Calaris (excellent, especially for the Council of 362). Under this head may be mentioned the numerous excellent articles in Dict. Chr. Biog . referred to in their respective connexions. (b) On the doctrine of Athanasius . In addition to the works of Ceillier and Möhler referred to above, Atzberger , Die Logoslehre des h. Ath . (Munich, 1880); Voigt , Die Lehre des Athan . (Bremen, 1861); Pell , Lehre des h. Ath. von der Sünde und Erlösung (Passau, 1888, a careful and meritorious analysis, candidly in the interest of Roman Catholicism. Difficulties not always faced). The above list of authorities, &c., does not pretend to completeness, nor to enumerate the sources for general secular or Church history. But in what relates specially to Athanasius it is hoped that an approximation to either requirement has been attained. Works bearing on more special points are referred to in their proper places. In particular, a special Brief Bibliography is prefixed to the Vita Antonii .