We are pleased to be able to honor Arthur J. Bronstein with this volume of essays. We are all the more pleased because the volume has consider able intrinsic merit, but neither the reader nor Arthur should have any doubts about our primary purpose in assembling this book. That the col lection is intrinsically valuable is, in itself, a tribute to the man whom it honors: The contributing authors are all colleagues, students, and friends of Arthur. Readers who are acquainted with Arthur will not be surprised by the broad range of academic expertise which has been brought to bear on the subject...