CONTENTS List of Texts xiii List of Illustrations xxxi INTRODUCTORY MATERIAL Introduction to Volume 13 xxxiii Editorial Method of the Series lxxix Acknowledgments lxxxvii Note on the Translation lxxxix List of Abbreviations xc Location Symbols xci Descriptive Symbols xciv TEXTS 1 Alphabetical List of Correspondence 753 Chronology 771 Calendar of Abstracts 783 Appendixes 833 Literature Cited 893 Index 921 Index of Citations 973