the rock seeming to indicate where posts once stood. [Footnote 1: _Nopal_, a species of cactus.] The view from this spot is the most beautiful that could have been selected on the mountain; and warmed by the sun, and sheltered from the winds of the north, it was, also, the most delightful. The city of Mexico is seen distinctly, the lake of _Tescuco_ and populous plains intervening, in the southwest; and to the south rise the snowy mountains of _Puebla_. From the bath, we continued our walk along the terrace, upon which still exist traces of an aqueduct, which, at the eastern extremity of _Tescusingo_, crossed from the contiguous mountain upon an artificial pile of stone, conveying water, we were informed, a distance of seven or eight leagues. We were yet several hundred feet from the top. Ascending farther, we encountered other remains of structures, and came to a levelled surface about fifty feet square. All these are convincing proofs of the numerous edifices which once existed upon this mountain, but we must ever remain ignorant of their nature and purpose. Upon the summit, which commands a fine view of the surrounding country, is a rock of huge size, in which seats have been cut. In our descent on the northern side, which is very rough and steep, we discovered accidentally a flight of seven steps cut out of a single rock--of these, our guide, an Indian antiquarian of _Tescuco_, had heretofore been ignorant. Many objects worthy of investigation will no doubt reward those who should diligently extend their researches upon the mountain of _Tescusingo_. We reached the foot without further incident, and rejoined our carriage at the mill, much fatigued with our ramble under a burning sun. Soon after four we were again under the roof of our kind host. After dinner, our friend, Don Nicolas Campero, conducted us to the ruins which I have already mentioned to be just without the gate of the town. Their structure and extent are marked by the revolutionary trenches which surround them. The occasional layers of cement are perpendicular as well as horizontal, and between them are laid _adobes_--unburnt bricks--which compose the work. Judging from appearances, it would not be rash, perhaps, to conjecture that this was the site of the Great Temple, which, we are assured, was always constructed upon eminences like this. Its distance from the palace amply proves the extent of the ancient city of _Tescuco_ to have been very great.