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xvi INTRODUCTION. ample of the book. The notes of the earlier editors, as well as those based on recent his- torical study and the addition of the more im- portant unpublished material in the original man- uscript, unknown to earlier students, appreciably enlarge the contents of the book as originally pubhshed. There has been added that which was sadly wanting for nearly two centuries — an important aid in the study of this source book — an Index. EDWARD WHEELOCK.
