"The piers (_i. e._ the square columns of the Temple) which are still standing, contained other figures of the same general character, but which unfortunately are more mutilated, and from the declivity of the terrace it was difficult to set up the _camera lucida_ in such a position as to draw them. The piers which are fallen were no doubt enriched with the same ornaments. _Each one_ had a specific meaning, _and the whole probably presented some allegory or history_, and when entire and painted, the effect in ascending the terrace must have been imposing and beautiful." This "allegory or history" we have endeavoured to decipher in the Analogies. The sculpture of this Temple, like the metopes of the Parthenon, should not be viewed in separate parts, but as a whole; for the parts, like single letters, are useless in themselves, but when placed together in proper and consecutive localities, they instantly express a word, or sentences, and thence convey to the mind the full intelligence of the subject. "The tops of the doorways are all broken. They had evidently been square, and over one were large niches in the wall on each side, in which the lintels had been laid. The lintels had been all fallen, and the stones above formed broken natural arches [angles?]. Underneath were heaps of rubbish, but there were no remains of lintels. If they had been single slabs of stone, some of them must have been visible and prominent, and we made up our minds _that the lintels had been of wood_, and perhaps we should not have ventured the conclusion, but for the _wooden lintel_ which we had seen over the doorway at Ocosingo, and by what we saw afterwards in Yucatan (Uxmal), we were confirmed beyond _all doubt_ in our opinion. I do not conceive, however, that _this gives any conclusive data_ in regard to the age of the buildings. The wood (lintels) if such as we saw in the other places (_i. e._ Ocosingo and Uxmal) would be very lasting, its decay must have been extremely slow, and _centuries_ may have elapsed since it perished altogether." The decaying of the lintels at Ocosingo and Palenque, and their existence and _preservation_ at Uxmal enables a data to be formed in reference to the order of their erection; for the _non-appearance_ of any wooden lintels at Copan authorizes the placing of that city first in chronological order, followed by the cities of Ocosingo and Palenque, and from the argument, and the preservation of the wood, Uxmal was built _after_ the foregone. "The building has two parallel corridors running lengthwise _on all four of its sides_. In front these corridors are about nine feet wide, and extend the whole length of the building, upwards of two hundred feet. In the long wall that divides them there is but one door, which is opposite the principal door of entrance, and has a corresponding one on the other side, leading to a courtyard in the rear.