We continued our walk to the ruins of an extensive building, upon which are growing numerous plants of the _maguey_. The layers of cement are seen distinctly--very smooth and hard. An old woman who lives near, has collected large pieces of this cement with which she has paved the _patio_ of her house; so solid is it, that one of our companions believed it to be stone, until he had tested it with the hammer. At eleven o'clock we set out in our coach for the mountain distant near two leagues to the eastward of _Tescuco_. About a quarter of a mile from the town, we observed two circular carved stones which we had not time to examine. After riding a league over the plain, we stopped at the Molino de las Flores--mill of flowers--a most romantic spot. Great labor has been expended upon the race for conducting the water to the mill from the natural dam of rocks, over which the stream during the rainy season, dashes in torrents into a rugged bed. The plain from thence to the foot of the mountain being broken by deep _barrancas_--gullies--our carriage was unable to proceed farther. We were, therefore, compelled to walk, against our inclinations, for the sun was scorching, and we were aware of the labor we must encounter in the ascent of the mountain. A walk of two miles brought us to the foot of the mountain of Tescusingo, the steep sides of which covered with _nopal_,[1] we began to climb slowly. After winding about midway up on the western side, our guide conducted us to the mouth of an apparently artificial cavern, with an entrance about six feet high--descending a dozen steps it takes a new direction. Having no lights we were obliged to leave it unexplored. Continuing to ascend, we passed towards the southern declivity, and soon met with cement, which in various parts of the mountain denotes extensive remains of ancient edifices--with walls constructed of _tetzontli_--and particularly with a large square stone hollowed neatly like a drain; and a reservoir for water appeared to have existed below it. We were now about three-fourths of the distance up the mountain, and had attained a terrace, along which we walked to the _Bath of Tescusingo_--the chief object of our visit. This remarkable work is cut out of a solid rock--hard feldspar porphyry--which hangs like a bird's nest upon the steep side, which faces to the south. An irregular platform of seven feet and a half diameter appears to have been first cut into the rock--the sides of the rock forming a wall smooth on the inside, nearly two feet and a half high, the outside left as nature made it--in the centre of this platform a circular bath is cut out, with a diameter of four feet seven inches, two feet deep, with two steps to descend into it. A perforation in one part of the platform shows where the water was admitted, and it escaped from the bath by a cleft which extends from top to bottom. The bath was probably covered with a roof--cavities in