Above the double-urn level, at 3 metres above zero, the high pottery coffins begin, which are shown by isolated finds in the Southern Citadel to belong undoubtedly to the time of Nebuchadnezzar and earlier. On the side where the head lay they are angular, the other side is rounded. The body lies crouched in them, or slightly on one side. These “crouching burials” were somewhat shallower in the upper levels, so that the body lay with the knees drawn up on one side, while the upper part of the body perhaps lay on the back; hence the sarcophagus assumes a bulging shape at the foot end. It was covered over with a flat or slightly curved clay cover. At 4 metres above zero are the shallow, somewhat short, trough-shaped coffins, in which the body lay at full length, with the knees only slightly flexed (Figs. 196, 197). The shallow vaulted covering was made of two pieces that leant against each other in the centre. Generally, however, the coffin was placed upside down over the body as it lay on the ground, thus rendering the cover unnecessary. These “crouching burials” are found as high as 7 metres above zero (Fig. 198). It is only in the topmost levels of Merkes that the brick-built sarcophagi are found which we have already mentioned (p. 216) and assigned to the Graeco-Parthian period (Fig. 199). There is no doubt that they were usually sunk in the ground. Often, however, the roof is so carefully built with bricks tilted up cornerwise, and covered over with gypsum mortar, that we are forced to admit the possibility that this part at least may in some cases have stood above the ground. The remains of the wooden coffin that actually enclosed the body have frequently been found inside the sarcophagus. [Illustration: FIG. 201.—Deposits from a coffin. ] Glazed trough coffins, which were so numerous on the Kasr in the principal court of the Southern Citadel (p. 102), are almost entirely absent in Merkes, and so are the slipper and anthropoid coffins. A fine example of the latter lay on the north-east corner of the Kasr (Fig. 200). The glazed trough coffin must therefore date from a period when the main part, the wide town area of Babylon, was already completely abandoned, and only Amran, the Kasr, and Babil were inhabited.