- Emeritus Professor, University of Swansea
- Senior Fellow, The Warburg Institute, University of London, 1970 - 1971
- Professor in the History of Ideas, University of Wales, Swansea, 1981 - 1986
- Emeritus Professor, University of Swansea, University of Wales, Swansea, 1961 - 1986
English Language and Literature History of a specific country Britain in the 18th & 19th C. History of Art Theory of Painting Cultural Geography
German literature and philosophy from 1700 to the present, particularly with reference to Goethe. Theological aspects of contemporary politics
English Language and Literature Northern Europe France
Italian language and literature; manuscript studies; historical studies of language and literature; medieval history; historical linguistics; southern Europe, Italy.