For the general history of Italy in the 9th and 10th centuries, I may properly refer to the 5th, 6th, and 7th books of Sigonius de Regno Italiae (in the second volume of his works, Milan, 1732); the Annals of Baronius, with the criticism of Pagi; the 7th and 8th books of the Istoria Civile del Regno di Napoli of Giannone; the 7th and 8th volumes (the octavo edition) of the Annali d' Italia of Muratori, and the 2nd volume of the Abregé Chronologique of M. de St. Marc, a work which, under a superficial title, contains much genuine learning and industry. But my long-accustomed reader will give me credit for saying, that I myself have ascended to the fountain head, as often as such ascent could be either profitable or possible; and that I have diligently turned over the originals in the first volumes of Muratori's great collection of the Scriptores Rerum Italicarum.