Such is the exterior of the Casa del Gobernador. To go into any description of details would extend these pages to an indefinite length. Its distinguishing features are, that it was long, low, and narrow; below the cornice plain, and above ornamented with sculpture all around. Mr. Catherwood made minute architectural drawings of the whole, and has in his possession the materials for erecting a building exactly like it; and I would remark that, as on our former expedition, he made all his drawings with the camera lucida, for the purpose of obtaining the utmost accuracy of proportion and detail. Besides which, we had with us a Daguerreotype apparatus, the best that could be procured in New-York, with which, immediately on our arrival at Uxmal, Mr. Catherwood began taking views; but the results were not sufficiently perfect to suit his ideas. At times the projecting cornices and ornaments threw parts of the subject in shade, while others were in broad sunshine; so that, while parts were brought out well, other parts required pencil drawings to supply their defects. They gave a general idea of the character of the buildings, but would not do to put into the hands of the engraver without copying the views on paper, and introducing the defective parts, which would require more labour than that of making at once complete original drawings. He therefore completed everything with his pencil and camera lucida while Doctor Cabot and myself took up the Daguerreotype; and, in order to ensure the utmost accuracy, the Daguerreotype views were placed with the drawings in the hands of the engravers for their guidance. [Engraving 13: Ground Plan of the Casa del Gobernador] The ground plan of the Casa del Gobernador is represented in the engraving below. It has eleven doorways in front and one at each end. The doors are all gone, and the wooden lintels over them have fallen. The interior is divided longitudinally by a wall into two corridors, and these again, by cross walls or partitions, into oblong rooms. Every pair of these rooms, the front and back, communicate by a doorway exactly opposite a corresponding doorway in front. The principal apartments in the centre, with three doorways opening upon the terrace, are sixty feet long. The one in front is eleven feet six inches wide, and the inner one thirteen feet The former is twenty-three feet high to the top of the arch, and the other twenty-two feet. The latter has but one door of entrance from the front room, and except this it has no door or aperture of any kind, so that at the ends it is dark and damp, as is the case with all the inner rooms. In these two apartments we took up our abode.