THIS BOOK WAS WRITTEN over a period of about five years while the author worked as a full-time administrator and part-time volunteer teacher. Many colleagues gave up time from their own research to contribute advice and encouragement and thereby to make an otherwise impossible project feasible. There is not sufficient space for me to acknowledge fully the debt owed to them or to mention all who assisted. Nevertheless, the author wants to signal his gratitude to those who worked especially hard on his behalf.
Richard Burks, Bob Donia, Stephen Fischer-Galati, Radu Floerescu, Chuck Gribble, Jiri Hochman, Jerzy Kryzanowski, Ken Naylor, Michael Petrovich, and Carole Rogel all offered suggestions and encouragement. In addition, Fred Chary, Duncan Perry, and Scott Seregny all read the manuscript with particular care and offered invaluable advice on organization and style. Ljubica Acevski, Shari Lorbach, and Robert Gross all made crucial contributions to the preparation of the manuscript.
Arthur Adams, Jan Adams, Michael Curran, and Diether Haenicke are former administrative colleagues who offered not only the flexibility needed for me to pursue teaching and research but also the inspiration of their own continuing scholarly activities. A current colleague, Elaine Hairston, has maintained this environment of support. I am especially grateful to all of them.
Finally, my greatest debt is to my wife, Noelle Van Pulis, who endured with grace and good humor the frequent distractions from household and parental duties which I visited on her during the preparation of this study.