[Illustration: FIG. 1.] [Illustration: FIG. 2.]
The middle chamber is now devoid of decorations of any sort. Its length, _seven_ meters, is to-day the only vestige which remains to indicate that in it, in former times, were practised rites and ceremonies pertaining to the third degree of initiation. This chamber could be reached by walking on the narrow terrace round the building; but I feel certain that those whose privilege it was to assemble within its walls, got to it from the west side.
There was a stairway nine metres wide, beautifully ornamented, leading from the court yard adjoining the priests' palace, to the entrance of the sanctuary. Thence another small stairway 2m. 40c. wide, situated on the north side of the sanctuary, led to the upper terrace, to the roof of that monument, and to the middle chamber. The access to the north and south rooms was by a grand stairway of ninety-six steps, each 20cm. high, that led to the upper terrace surrounding the whole edifice. This stairway, situated on the east side of the mound, is fourteen metres (45 feet 6 inches) wide, and, like that on the east side, so steep as to require no little practice and care to ascend and descend its narrow steps with comparative safety and ease.
A few centimetres above the lintel of the entrance to the sanctuary is a cornice that surrounds the whole edifice. On it are sculptured these symbols,
many times repeated. On the under part of this cornice are small rings cut in the stone, from which curtains were suspended, to hide the Holy of Holies from profane gaze.
The exterior of the monument was once upon a time ornamented with elaborate and beautifully executed sculptures, which have now, in great part, disappeared. Still those that adorn the exterior walls of the sanctuary, remain as specimens of the beautiful handiwork and of the great skill of the artists; whilst the exquisite architectural proportions of the whole edifice bespeak the mathematical and other scientific attainments of the architects who planned the building and superintended its erection.
The ornaments that cover these walls are remarkable in more than one sense. They are not only inscriptions in the Maya language, written in characters identical with, and having the same meaning and value as those carved on the temples of Egypt; but among them are symbols known to have belonged to the ancient sacred mysteries of the Egyptians, and to modern Free Masonry. In August 1880, among the débris, at the foot of the mound just described, I found pieces of what once had been the statue of a priest. The part of the statue, from the waist to the knee, particularly attracted my attention. Over his dress the personage wore an apron with an extended hand, as seen in the adjoining illustration. A symbol that will easily be recognized by members of the masonic fraternity.