Brown University, Providence, R. I. (USA), AB 1954.
Wesleyan University, Middletown, CT (USA), MA 1958.
Universitet i Oslo, 1960–61.
Brown University, PhD 1961.

Preston Guerney Literary Prize, Brown University, 1953.
James Manning Scholar, Brown University, 1953–54.
Lester Boardman Prize in American Literature Brown University, 1954.
Senior Orator, Brown University, 1954.
Research Fellow in American Music History, Brown University, 1953–54.
Fulbright Scholar, University of Oslo, 1960–1961.
Fulbright Lecturer, University of Iceland, 1964–1965.

Teaching Assistant, Brown University, 1958–59.
Teaching Associate, Brown University, 1959–60.
Instructor of English, Brown University, 1961–62.
Assistant Professor of English, Brown, 1962–1964.
Professor of English and American Literaure, Háskóli Íslands, 1964–1965.
Professor of Medieval English Language and Literature, University of Geneva, 1965–1997.

Professeur honoraire, Université de Genève, 1997.
Sometime Visiting Professor, universities of Lausanne, Fribourg, Zürich.
Visiting Fellow of Berkeley College, Yale University, 1980–1981.
Lecturer, University of New Mexico, 1987–1988, 1998–1999.
Visiting Professor, English and Medieval Studies, University of New Mexico, 1998

The Elder Edda. London: Faber and Faber, 1969. New York: Random House, 1970. With W. H. Auden (translation with critical introduction).

For W. H. Auden: Essays for his Sixty-fifth Birthday. New York: Random House, 1972. Edited with P. H. Salus.

Norse Poems. London: Athlone Press; 1981, Faber and Faber, 1983 (with W. H. Auden).

Chaucer's Chain of Love. Rutherford, NJ: Fairleigh Dickinson University Press, 1996.

Sharing Story: Medieval Norse-English Literary Relations. New York: AMS Studies in the Middle Ages, No. 25. New York: AMS, 1998.

Chaucer Translator. Lanham, MD: University Press of America, 1998.

Shadows of Heaven: Gurdjieff and Toomer. York Beach ME: Samuel Weiser, Inc., 1998.

Gurdjieff and Orage:Brothers in Elysium. York Beach ME: Samuel Weiser, Inc., 2001.

"Heofon riece swealg: A Sign of Beowulf's State of Grace." PQ 42 (1963), 257–59.

"Old English eoletes Again." Lingua 13 (1965), 196–67.

"Heorot, Earth and Asgard: Christian Poetry and Pagan Myth. Tennessee Studies in Literature 11 (1966), 119–30.

"Some Vestiges of Ritual Charms in Beowulf." Journal of Popular Culture 1 (1967), 276–85.

"Themes of Death in Beowulf." Old English Poetry. Ed. Robert P. Creed. Providence: Brown University Press, 1967, 249–74.

"Heroic Ritual in the Old English Maxims." NM 70 (1969), 387–407.

"Charms of Wynn and Fetters of Wyrd in the Wanderer." NM 73 (1972), 448–55.

"Text and Texture in the Dream of the Rood."NM 75 (1974), 193–201.

"Some Alliterative Misfits in Beowulf." Nph 66 (1982), 614–21. (With R. E. Davis)

"Searoniðas; Old Norse Magic and Old English Verse." Studies in Philology 80 (1983), 109–25.

"Grendel's Monstrous Arts." In Geardagum 6 (1984), 1–12.

"The Traditional Language of Treasure in Beowulf." Journal of English and Germanic Philology 85 (1986), 191–203.

"Some Uses of Etymologiy in the Reading of Old Germanic Texts." Hermeneutics and Culture. Ed. Patrick J. Gallacher and Helen Damico. Albany: SUNY Press, 1989, 109–20.

"The Old English Vocabulary of Beauty." New Readings on Women in Old English Poetry. Ed. Helen Damico and Alexandra Hennessey Olsen. Bloomington: University of Indiana Press, 1990, 211–21.

"The Epithetical Style of Beowulf." NM 91 (1990), 195–206.

"Onomastics and Propaganda in Brunanburh." American Notes and Queries 7 (l994), 67–68.

"Roland's Aude: Retrieving the Treasure in Name." Romance Quarterly 41 (1994), 195–203.

"The Language of Sacral Kingship in Beowulf." Studia Neophilologica 66 (1994), 129–45.

"The Dragon's Treasure in Beowulf." NM 98 (1997), 1–12.

"Blysse and Blunder: Nature and Grace in Sir Gawain and The Green Knight." English Studies 50 (1969), 165–75.

"Icelandic Analogues to the Northern English Gawain Cycle," JPC 4 (1970), 93–106.

"Commerce and Comedy in Sir Gawain, " Philological Quarterly 50 (1971), 1–15.

"Gawain's Garland of Girdle and Fame," English Studies 55 (1974), 6–14.

"The Canon Yeoman's Breath: Emanations of a Metaphor," ES 60 (1979), 380–88.

"Peynted Confessiouns: Boccaccio and Chaucer," Comparative Literature 17 (1982), 116–29.

"Chaucer's cosyn to the dede," Speculum 57 (1982), 315–27.

"The Parson's Amyable Tongue," ES 64 (1983), 401–9.

"Wife of Bath, Pardoner and Sir Thopas: Paratexts and Pretexts." The Structure of Texts. Ed. Udo Fries. Swiss Papers in English Language and Literature 3. Tübingen: Gunter Narr, 1987, 125–34.

"The Faire Queen Eleyne in Chaucer's Troilus," Speculum 63 (1988), 293–311. (With Christopher Baswell)

"Chaucer's Faire Cheyne of Love: The First Model of Mediation in the Canterbury Tales." Reading Contexts: Ed. Neil Forsyth. SPELL 4. Tübingen, Gunter Narr, 1988, 133–46.

"Wisdom and Myth: Scandinavian Backgrounds of Sir Gawain." The History and Dialects of English. Ed. Andreas Fischer. Heidelberg: Carl Winter, 1989, 177–85.

"Cave and Web: Vision and Poetry in Chaucer's Legend of Good Women." Poetics: Theory and Practice in Medieval English Literature. Ed. Piero Boitani and Anna Torti. Woodbridge: Boydell and Brewer, 1991, 69–82.

"The Uncourteous Knights of the Canterbury Tales," ES 72 (1991), 209–18.

"Chaucer's Eye of the Lynx and the Limits of Vision." CR 28 (1993), 67–77.

"Chaucer's Names." NM 95 (1994), 243–48.

"Time in the Canterbury Tales." Exemplaria 7 (1995), 371–93.

"L'histoire de Néron par le 'Grant Translateur, Noble Geoffrey Chaucier,'" Du moyen âge à la modernité: mélanges offerts à Roger Dragonetti. Ed. Jean R. Scheidegger. Paris: Champion, and Genève: Slatkine, 1996, 427–42.

"The Failure of Family and Demise of Dynasty in Sir Gawain." The Family. Ed. Werner Senn. SPELL 9. Tübingen: Gunter Narr, 1996, 207–23.

"Myths and Etymologies Behind Malory's Gareth." ES 78 (1997), 506–12.

"Chaucer's Strategies of Translation." Chaucer Yearbook 4 (1997), 1–19.

"Chess in Chaucer's Book of the Duchess," ChauR 32 (1998), 325–334. (with Guillemette Bolens)

"Triadic Contexts and Structures of Chaucer’s Sir Thopas." English Language Notes 37 (1999), 1–13.

"Chess, Clocks and Counselors in Chaucer’s Book of the Duchess." ChauR 35 (2001), 281–93. (with Guillemette Bolens)

"Icelandic Analogues to the Northern English Gawain Cycle," JPC 4 (1970), 93–106.

"The Rhythm of Völuspá," Nph 55 (1971), 45–57.

"The Old Icelandic Völuspá as Eschatology." For W. H. Auden. Ed. P. B. Taylor and P. H. Salus. New York: Random House, 1972, 133–46.

"The Hönen Runes: A Survey," Nph 60 (1976), 1–7.

"Searoniðas: Old Norse Magic and Old English Verse," Studies in Philology 80 (1983), 109–25.

"Kinds of Evil and Evil of Kind in Early Icelandic Literature." Papers of the Sixth Saga Conference. Copenhagen: Arnamagnæan Institute, 1985, II, 1037–50.

"Wielders and Wasters of Words; Bare Lies and Garnished Truths in Njáls saga." Sagnaskemmtun: Studies in Honour of Hermann Pálsson. Ed. Rudy Simek et. al.Wien: Herman Bohlaus, 1986, 287–96.

"Logoþorr and Loður: The Literary Contexts." Studies in Honour of René Dérolez. Ed. M. Simon-Vanderbergen. Gent: Englisches Seminar, 1987, 603–11.

"Völundarkviða, Þrymskviða and the Function of Myth." Neophilologus 78 (1994), 263–81

"Njál Grómr: Christian Morality and Norse Myth in Njáls Saga." Medieval Scandinavia 13 (2000), 167–80.