This book is a rich source for Native American and Moravian history. The 1772-1781 diaries remain largely untapped by American scholars because they have not been available in English translation. Publication of this modern scholarly edition, therefore, will have a major impact on the field of early American history. This edition contains a cornucopia of ethnographic and historical information about the Delawares and neighboring tribes in the upper Ohio Valley during the Revolutionary era. The editors have done an excellent job of identifying and expanding the knowledge of many of the important figures from this period. This volume will be welcomed by any scholar interested in the early history of Ohio or western Pennsylvania-a most valuable addition to the collections of published primary materials on these subjects.