- Honorary Research Fellow, University of Manchester (from 2014 to 2015)
- Professorial Research Fellow, University of Manchester (from 2013 to 2014)
- Emeritus Fellow, All Souls College (from 2010 to 2021)
- Senior Research Fellow, All Souls College (from 1998 to 2010)
- Professor of Latin, University of Reading (from 1995 to 1997)
- Professor of Latin, University of Manchester (from 1993 to 1995)
- Reader, University of Manchester (from 1982 to 1993)
- Lecturer, University of Manchester (from 1972 to 1982)
- Rouse Research Fellow in Classics, Christ’s College, Cambridge (from 1970 to 1972)
- Commonwealth Scholar, Brasenose College (from 1967 to 1970)
- Teaching Fellow, Department of Latin, University of Sydney (from 1965 to 1967)
- Undergraduate, University of Sydney (to 1965)
- Social Variation and the Latin Language (Cambridge: Cambridge University Press, 2013).
- The Regional Diversification of Latin 200 BC-AD 600 (Cambridge: Cambridge University Press, 2007).
- Bilingualism and the Latin Language (Cambridge: Cambridge University Press, 2003).
- Pelagonius and Latin Veterinary Terminology in the Roman Empire (Leiden: Brill, 1995).
- Wackernagel’s Law and the Placement of the Copula Esse in Classical Latin (Cambridge: Cambridge Philological Society, 1994).
- The Latin Sexual Vocabulary (Baltimore: Johns Hopkins University Press, 1982).
- The Vulgar Latin of the Letters of Claudius Terentianus (Manchester: Manchester University Press, 1977).
- Publications (External Link)
- Kenyon Medal for Classical Studies and Archaeology 2009.
