Mount Baker Eruptions and GlaciationsDon J. Easterbrook is Emeritus Professor of Geology at Western Washington University where he was department chairman for 12 years. He has B. S., M. S., and PhD degrees from the University of Washington and has published a dozen books, 180 papers in professional journals, and presented 30 research papers at international meetings in 15 countries. His research has included many years of work in the North Cascades, Puget Lowland, San Juan Islands,