This book contains the papers that were presented at the "Crystallo graphic and Modeling Methods in Molecular Design Symposium" in Gulf Shores, Alabama, April 30 to May 3, 1989. During the past few years, there has been a burst of activity in this area, especially related to drug design and protein engineering projects. The purpose of the symposium and this book is to provide an up-to date review of the most recent experimental and theoretical approaches that are being used for molecular design. The book covers several re cent examples of approaches for using crystallography in conjunction...