The temple was built with great regularity (Figs. 137, 138). It is an accurate rectangle of mud brick, with a kisu of burnt brick, for, like so many others, it has been heightened. It is divided into two clearly distinguishable parts: the eastern, intended for the cult with the cella to the south, in which the postament stood in the niche in the wall; and the western, which resembled a private house of two courts. Here the priest, the temple administrator, may have lived. Two gates distinguished by the towered façade, led, each of them, through a vestibule into the court in front of the cella. In addition a doorway gave direct access to the chamber in the north-east corner, where the public could transact business with the temple officials, without being forced to enter the enclosed part of the temple. The northern gate was indicated as the main entrance by the paved site for an altar (Fig. [139]). The brick casket at its eastern jamb contained a pottery dove, and a small piece of pottery with an inscription that has not been satisfactorily explained hitherto, although it is fairly clearly written.[[4]]
Fig. 139.—Reconstruction of temple “Z.”
Fig. 140.—Figure of Papsukal from temple “Z”—front view.
Fig. 141.—Figure of Papsukal from temple “Z”—back view.
Even at the lowest pavement level of 20 centimetres below zero the temple was in use. Here stood the oldest postament, and below it, as was to be expected, was the brick casket (simâku) with the statuette of Papsukal inscribed on its shoulder-blades (Figs. 140, 141). Above this postament there lay four more pavements divided from each other by layers of earth, which represent four successive heightenings of the temple level, carrying it up to 5.84 metres above zero. The slight raising of half a metre would make scarcely any change in the building, but when the level was heightened as much as 4 metres at one time, a heightening of the roof and other rebuilding was unavoidable. At the same time the former ground-plan was generally retained with such great care, that at this temple we observed nothing on the walls themselves resulting from such rebuilding, although we laid them bare to a height of 9 metres.
The outer circuit shared in this heightening to an equal extent, or, to speak more accurately, it was the continual heightening of the roads that lay around it that was the reason for raising the temple. The same arrangement can be seen to-day in Oriental cities. The newly-built houses are of course so constructed that the ground floor is on about the same level as the street. As the latter, however, serves as the depository of all sorts of rubbish it is not long before the ground floor is below the street level. In Bagdad, for example, one has always to step down on entering an old house from the street, and the older the house the deeper the step. When the building becomes ruinous and requires rebuilding, the new floor is of course made level with the street. Part of the rubbish of the destroyed house is used to raise the level of the house, the rest is thrown into the street. If the houses are built of burnt brick a large part of the building material can be re-used, but with houses of mud brick almost the whole of the material becomes rubbish, which when spread out gradually raises the whole area. It follows that in the course of hundreds or thousands of years such a town site must become very considerably higher (see Fig. [154]).
It must be taken into consideration that later and more cultured periods yield higher deposits of rubbish than earlier ones, which are remains of simpler conditions of life, and of unpretentious dwelling-places. Also in the course of a long period the rubbish is much more pressed together by its own weight than in a shorter period, when the process of compression has not been so prolonged.