of ruins; but in all our explorations there was none so touching as this. Next to the great building of the Casa del Gobernador, and hardly less extraordinary and imposing in character, are the three great terraces which hold it aloft, and give it its grandeur of position; all of them artificial, and built up from the level of the plain. The lowest of these terraces is three feet high, fifteen feet broad, and five hundred and seventy-five feet long; the second is twenty feet high, two hundred and fifty feet wide, and five hundred and forty-five feet in length; and the third, on which the building stands, is nineteen feet high, thirty feet broad, and three hundred and sixty feet in front. They were all supported by substantial stone walls; that of the second terrace is still in a good state of preservation, and at the corners the stones which support it are still in their places, with their outer surfaces rounded, instead of presenting sharp angles. The platform of this terrace is a noble terra plana, five hundred and forty-five feet long and two hundred and fifty feet wide, and, from the remains still visible upon it, once contained structures and ornaments of various kinds, the character of which it is now difficult to make out. On our first arrival the whole was covered with a rank growth of bushes and weeds ten or twelve feet high, on clearing which away these remains were brought to light. Along the south end there is an oblong structure about three feet high, two hundred long, and fifteen feet wide, at the foot of which there is a range of pedestals and fragments of columns about five feet high and eighteen inches in diameter. There are no remains of a roof or of any other structure connected with them. Near the centre of the platform, at a distance of eighty feet from the foot of the steps, is a square enclosure, consisting of two layers of stones, in which stands, in an oblique position, as if falling, or, perhaps, as if an effort had been made to throw it down, a large round stone, measuring eight feet above the ground and five feet in diameter. This stone is striking for its uncouth and irregular proportions, and wants conformity with the regularity and symmetry of all around. From its conspicuous position, it doubtless had some important use, and, in connexion with other monuments found at this place, induces the belief that it was connected with the ceremonial rites of an ancient worship known to have existed among all Eastern nations. The Indians call this stone the Picote, or whipping-post.