One of the most important helps towards the deciphering of the hieroglyphic MSS. of the Americans is to be found in certain books which, soon after the conquest of Mexico, were written down by natives who had learnt the art of alphabetic writing from their conquerors, the Spaniards. Ixtlilxochitl, descended from the royal family of Tetzcuco, and employed as interpreter by the Spanish Government, wrote the history of his own country from the earliest time to the arrival of Cortez. In writing this history he followed the hieroglyphic paintings as they had been explained to him by the old chroniclers. Some of these very paintings, which formed the text-book of the Mexican historian, have been recovered by M. Aubin; and as they helped the historian in writing his history, that history now helps the scholar in deciphering their meaning. It is with the study of works like that of Ixtlilxochitl that American philology ought to begin. They are to the student of American antiquities what Manetho is to the student of Egyptian hieroglyphics, or Berosus to the decipherer of the cuneiform inscriptions. They are written in dialects not more than three hundred years old, and still spoken by large numbers of natives, with such modifications as three centuries are certain to produce. They give us whatever was known of history, mythology, and religion among the people whom the Spaniards found in Central and South America in the possession of most of the advantages of a long-established civilisation. Though we must not expect to find in them what we are accustomed to call history, they are nevertheless of great historical interest, as supplying the vague outlines of a distant past, filled with migrations, wars, dynasties, and revolutions, such as were cherished in the memory of the Greeks at the time of Solon, and believed in by the Romans at the time of Cato. They teach us that the New World which was opened to Europe a few centuries ago, was in its own eyes an old world, not so different in character and feelings from ourselves as we are apt to imagine when we speak of the Red-skins of America, or when we read the accounts of the Spanish conquerors, who denied that the natives of America possessed human souls, in order to establish their own right of treating them like wild beasts.