prevailed at the time of Montezuma that the period of his return had arrived. _Veytia_, _Hist. Ant. Mex._ Sixth, that there were at the convent of Nijapa, in the province of Oajaca, hieroglyphs containing all the principal doctrines of the Christian religion, and the coming of the Apostle to the country. _Id._ Sahagun, who wrote at the time of the conquest, speaks of the general belief in this prophecy, and assures us that on the arrival of the Spaniards they repeatedly offered them divine honors, believing that their god Quetzalcoatl had returned. _Conq. Mex._, i. chap. iii. "It is then undeniably true," says Gleeson, _Catholic Church in Cal._, 185, "that a popular tradition existed in the country respecting a prophecy made by Quetzalcohuatl, in which was foretold the future arrival of whites on the coast; and this, while it proves the reality of the man, and his character as a teacher of religion, also proves the still more important and appreciable fact of his being a Christian, and of western origin; for, it was clearly set forth in the prophecy, that the persons who should come would be whites, and of the same religion as he. The time also seems to have been specified by the Apostle, if we are to judge by the expression that they were expecting him every day. And, indeed, Boturini assures us that the time mentioned in the Mexican hieroglyphics was that in which the Christians arrived. The year _ce acatl_ was that foretold by Quetzalcohuatl, and in that year the Spaniards landed in the Country." On ancient voyages and cosmography see also Humboldt, _Exam. Crit._, tom. i. pp. 125-206. It is the results of ancient voyages, the point of geographical knowledge attained by ancient civilization in its most advanced stage and by it bequeathed to the Dark Age, and not the voyages themselves, with which we have to do at present. This knowledge is found for the most part embodied in the system of Ptolemy, the Alexandrian geographer of the second century, whose works became the standard text-books, and holding their prominence for fourteen hundred years were not superseded as late as the sixteenth century, but were republished from time to time, with additions, setting forth the results of new discoveries. In this manner twenty-one editions appeared during the first half of that century. Nor was even Ptolemy the originator of this prolonged system. One hundred and fifty years before him was the Greek geographer Strabo, who gave descriptions of countries and peoples, fixing his localities usually by itinerary distances; and to this work of Strabo's, Ptolemy added a century and a half of progress, and determined his localities by astronomical observation. The work of Pomponius Mela, the Roman geographer who wrote probably somewhat later than Strabo, is regarded as no improvement on that of his predecessor.