ABSTRACT
The book in your hands is the last of the series of five volumes on which Professor John (Jack) Morgan and I (PL) have worked for over six years. The five volumes, it needs to be emphasized, could not have been produced had it not been for the scholarly, profound, beautifully and sensitively constructed chapters by all the experts in this field from all over the world. Without their willingness and their desire to help, the books would not have come to life. To the contributors to the five volumes, we owe an undying debt of gratitude.
