Without the assistance of Sherry Bryson, PublicationsOfficer of the Institute, this book would never haveappeared in press. Her work in editing and shepherdingthe manuscripts through the •preparation for printing•phase was outstanding. The diligent work of HelenTakeuchi in proofing, typing, and organizing the chaptersis gratefully recognized. And to Marietta Mendoza, whosetyping efforts went beyond the call of duty, a vote ofthanks. The authors and editor are deeply appreciative ofthe contributions of these staff members.