-Dec. 1994. Retirements: Pijush Mitra, after 26 years of service; and Pierre Tu, after 27 years of service. ... Appointment changes: Hoy F. Carman, full- time teaching and research; Richard J. Sexton, Chair, Dept. of Ag. Econ. Return from leave: Julian M. ... Leave: V.W. House, USDA-ES, Poland, June-Dec. 1994. Position taken by ... Return from leave: Glenn C. Fox, Karl D. Meilke, and D. Peter Stonehouse.