work, was first to review the system of government of the Incas, and then to narrate the events of the reign of each sovereign. He spared no pains to obtain the best and most authentic information, and his sympathy with the conquered people, and generous appreciation of their many good and noble qualities, give a special charm to his narrative. He bears striking evidence to the historical faculty possessed by the learned men at the court of the Incas. After saying that on the death of a sovereign the chroniclers related the events of his reign to his successor, he adds: “They could well do this, for there were among them some men with good memories, sound judgments, and subtle genius, and full of reasoning power, as we can bear witness who have heard them even in these our days.” Cieza de Leon is certainly one of the most important authorities on Inca history and civilization, whether we consider his peculiar advantages, his diligence and ability, or his character as a conscientious historian. Juan José de Betanzos, like Cieza de Leon, was one of the soldiers of the conquest. He married a daughter of Atahualpa, and became a citizen at Cuzco, where he devoted his time to the study of Quichua. He was appointed official interpreter to the Audience and to successive viceroys, and he wrote a _Doctrina_ and two vocabularies which are now lost. In 1558 he was appointed by the viceroy Marquis of Cañete, to treat with the Inca Sayri Tupac,[1229] who had taken refuge in the fastness of Vilcabamba; and by the Governor Lope Garcia de Castro, to conduct a similar negotiation with Titu Cusi Yupanqui, the brother of Sayri Tupac. He was successful in both missions. He wrote his most valuable work, the _Suma y Narracion de los Incas_, which was finished in the year 1551, by order of the Viceroy Don Antonio de Mendoza, but its publication was prevented by the death of the viceroy. It remained in manuscript, and its existence was first made known by the Dominican monk Gregorio Garcia in 1607, whose own work will be referred to presently. Garcia said that the history of Betanzos relating to the origin, descent, succession, and wars of the Incas was in his possession, and had been of great use to him. Leon Pinelo and Antonio also gave brief notices of the manuscript, but it is only twice cited by Prescott. The great historian probably obtained a copy of a manuscript in the Escurial, through Obadiah Rich. This manuscript is bound up with the second part of Cieza de Leon. It is not, however, the whole work which Garcia appears to have possessed, but only the first eighteen chapters, and the last incomplete. Such as it is, it was edited and printed for the _Biblioteca Hispano-Ultramarina_, by Don Márcos Jiménez de la Espada, in 1880.[1230]