and tinsel, and the nasty, ragged crowd of spectators, and take to the street again. You notice, as you leave the church, a round slab at its northern corner. That is the Calendar Stone of the Aztecs. It was saved from the ruins of the teocallis that stood here. It is a specimen of the learning and art of those people, and shows that but for their religion they might have longer held sway. Their present religion, poor as it is, replaced a poorer. This cathedral, grand as it is, is not too grand to occupy its seat. It is of the Lord.
THE AZTEC CALENDAR STONE.
Turn from the cathedral southward, enter the street opposite that by which you entered the plaza, pass by the President's palace and the post-office, and you come to a museum of antiquities. In the centre of its court lies a huge, round, red granite stone, twelve feet in diameter, four feet high. This stone is covered with amor-
