This one-volume reference work provides the first encyclopedic treatment of the life, thought, and influence of Augustine of Hippo (A.D. 354-430), one of the greatest figures in the history of the Christian church. The product of more than 140 leading scholars throughout the world, this comprehensive encyclopedia contains over 400 articles that cover every aspect of Augustine's life and writings and trace his profound influence on the church and the development of Western thought through the past two millennia. Major articles examine in detail all of Augustine's nearly 120 extant writings, from his brief tractates to his prodigious theological works. For many readers, this volume is the only source for commentary on the numerous works by Augustine not available in English. Other articles discuss: Augustine's influence on other theologians, from contemporaries like Jerome and Ambrose to prominent figures throughout church history, such as Gregory the Great, Aquinas, Luther, Calvin, and Harnack; Augustine's life, the chaotic political events of his world, and the church's struggles with such heresies as Arianism, Donatism, Manicheism, and Pelagianism; Augustine's thoughts about philosophical problems (time, the ascent of the soul, the nature of truth), theological questions (guilt, original sin, free will, the Trinity), and cultural issues (church-state relations, Roman society).

I first became interested in De dialectica in 1966, while I was doing re search on Augustine's knowledge of logic. At the time I made a transla tion of the Maurist text and included it as an appendix to my doctoral dissertation (Yale, 1967). In 1971 I thoroughly revised the translation on the basis of the critical text of Wilhelm Crecelius (1857) and I have re cently revised it again to conform to Professor Jan Pinborg's new edition. The only previously published translation of the whole of De dialectica . is N. H. Barreau's French translation in the Oeuvres completes de Saint Augustin (1873). Thomas Stanley translated parts of Chapters Six and Nine into English as part of the account of Stoic logic in his History of Philosophy (Pt. VIII, 1656). I offer De dialectica in English in the hope that it will be of some interest to historians of logic and of the liberal arts tradition and to students of the thought of Augustine. In translating I have for the most part been as literal as is consistent with English usage. Although inclusion of the Latin text might have justified a freer translation, for example, the use of modern technical terms, it seemed better to stay close to the Latin. One of the . values in studying a work such as De dialectica is to see familiar topics discussed in a terminology not so familiar. In the translation I follow these conventions.

The Stadsbibliotheek of Brugge houses a manuscript (ms. 510, f. 227ra-237vb) that holds a short logical text on the Syncategoremata, e.g. words that are not subjects or predicates in proposition. In this manuscript the text is ascribed to Henry of Ghent. The text contains some typical themes of Henry of Ghent, e.g. the distinction between esse essentiae and esse existentiae, which further supports the attribution to Henry. If it is the case that the text is by Henry, it shows that Henry had much more technical knowledge of logic and semantics than is often imagined. In the critical study which precedes the critical edition it is shown that the text was influenced by the logical works of Peter of Spain.

This volume is the first annotated translation in any language of the entire text of the Summulae de dialectica, by the Parisian master of arts John Buridan (1300-1358). One of the most influential works in the history of late medieval philosophy, the Summulae is Buridan's systematic exposition of his nominalist philosophy of logic. Buridan's doctrine spread rapidly and for some two hundred years was dominant at many European universities. His work is of increasing interest today not only to historians of medieval philosophy but also to modern philosophers, several of whom find in Buridan's ideas important clues to problems of contemporary philosophy. Gyula Klima provides a substantial introduction to Buridan's life and work and discusses his place in the history of logic. Through extensive notes Klima assists philosopher and medievalist alike to read Buridan with understanding and insight. Those with a philosophical interest in the relations among the structures of language, thought, and reality will find much to ponder in the Summulae.

The papers in this second selection of articles by Professor Colish focus on thinkers of the patristic age, and relate to her three monographic studies in this area published over the last two decades. At the same time these papers look beyond the patristic period, both backward to these authors' appropriation of the classical and Christian traditions, and forward to their function as authorities in later medieval intellectual history, from the Carolingian Renaissance to Anselm of Canterbury, the scholastics, and Dante. Themes which these papers address include the transmission and use of Platonism and Stoicism, logic and linguistic theory, and the ethics of lying, moral indifference, and the salvation of the virtuous pagan.

A major updating of scholarship on the philosophy and thought of Roger Bacon. In particular, it treats his philosophy of language, science and mathematics, moral philosophy, medicine, physics and metaphysics, and his history and sociology of religion.