Two UI professors have been named to administrative posts by the UI Board of Trustees at its meeting April 8 in Urbana. Colin E. Thorn was named head of the UI department of geography. Thorn will succeed John Jakle, who resigned as head to return to teaching and research. Thorn will begin his new duties May 21. Before joining the geography faculty at Illinois in 1979, Thorn taught at the University of Maryland and the University of Montana. He was acting head of the UI geography department from 1987 to 1988. Thorn earned his bachelor's degree at the University of Nottingham in Great Britain, his master's at McGill University in Montreal and his doctorate at the University of Colorado.