Richard A. Morrow Professor Emeritus of Physics 1958  B.Sc., Queen’s University 1959  M.Sc., University of British Columbia 1963  Ph.D., Princeton University Morrow Obituary Research Interests: Semiconductor theory Theoretical research on the defect chemistry of gallium arsenide. Native and impurity-related defects are thought to be responsible for the high resistivity of not-intentionally doped gallium arsenide. This