is Professor of Classics at Queen's University, Canada. His research fields cover the ancient sciences, astronomy, astrology and astrometeorology. He is the author of Astronomy, Weather, and Calendars in the Ancient World: Parapegmata and Related Texts in Classical and Near-Eastern Societies
(Cambridge, Cambridge University Press, 2007) and the soon to be published What Did the Romans Know?
(Chicago, University of Chicago Press, expected 2012 - currently available on pre-order
at £28.53 + P&P).