Nothing further remains to be said of the exterior of the Palace; let us therefore enter the doorway at the head of the eastern stairway. The main building is found to consist of two corridors, formed by three parallel walls and covered by one roof, which extend entirely round the circumference of the platform, and enclose a quadrangular court measuring about one hundred and fifty by two hundred feet. This court also contains five or six buildings, some of them connected with the main edifice, others separate, which divide the court into four smaller ones. The whole arrangement of buildings and courts is clearly shown in the preceding ground plan. At b, is the chief entrance at the head of the eastern stairway; a, a, a, etc., are the standing piers with stucco bas-reliefs, which have been noticed already; A, A, B, B, etc., are the main corridors; C, D, E, F, G, the smaller enclosed buildings; 1, 2, 3, 4, the courts.[VI-19]
THE PALACE CORRIDORS.
Entering at b, we find that the corridors extend uninterruptedly on the east and north, but are divided on the other sides, especially on the south, into compartments. In the inner as in the outer wall doorways are frequent, while the central wall has but few. The corridors are each nine feet wide and twenty feet high, the perpendicular walls being ten feet, and the sides of the ceiling inclining inward from that height until they nearly form an acute angle at the top. The cut represents a section of the two corridors in nearly their true proportions. The walls are from two to three feet thick, and so far as can be determined from the authorities, they are built entirely of hewn blocks of stone, without the interior filling of rubble which I have noticed in the Yucatan ruins. Indeed, with a thickness of three feet or less the use of rubble would have been almost impracticable. Floor, walls, and ceiling are covered with a coating of the same hard cement found on the exterior walls. The cut on the following page is a view from a point somewhat southward from b, and looking northward into the corridor; it gives an excellent idea of the present appearance of this portion of the Palace. The construction of the ceiling, both in the Palace and in other Palenque structures, is by means of the triangular arch of overlapping stones, as in Yucatan. A remarkable difference, however, is that the projecting corners of the blocks, instead of being beveled so as to leave a smooth stone surface, are left, and the smooth surface is obtained by filling the notches with cement.
Section of the Palace Corridors.
Palace Corridor at Palenque.