court, D, as well as a block of rooms lying to the south of the court. The court D is set round with engaged columns forming vaulted niches ([Fig. 91]). At the S.E. corner the vault of one of these niches is fluted ([Fig. 89]). The bracketed setting of these small semi-domes over the angles is to be noted. The block of chambers south of court D is more carefully built than any other part of the palace. It consists of an oblong antechamber, E, leading into a square room, F. On either side of the antechamber there are a pair of rooms, the walls and vaults of those lying to the west, G´ and H´, being finished with stucco decorations and small columned niches. On either side of the square chamber, F, is a room containing four masonry columns which support three parallel barrel vaults ([Fig. 92] and [Fig. 93]). South of room F stretches a cloister, J, which was covered with a barrel vault, now fallen. It opens into an unroofed court, K. The corridor C C´ runs to the south of court K, and still further to the south is another open court, L, with vaulted rooms round it.
To east and west of the corridor C C, C´ C´, lie four courts, M M´ and N N´. To north and south of each of these courts there are three vaulted rooms, but in M and M´ small antechambers in the shape of a narthex separate the rooms from the court, whereas in N and N´ the rooms open directly on to the court. In every case there are traces of a vaulted cloister, O O and O´ O´, between the court and the outer wall ([Fig. 97]). Behind each block of rooms there is a rectangular space, P P P P and P´ P´ P´ P´, two-thirds of which are vaulted, while the central part is left open ([Fig. 95]). Similar open spaces are left in the corridor C C, C´ C´, which would otherwise be exceedingly dark.
To return to the north gate. On either side of the small domed chamber, A, long vaulted corridors, Q Q´, lead to the outer court ([Fig. 96]). A door on the south side of corridor Q communicates with a small court, R, with chambers to north and south of it and vaulted cloisters to east and west. A group of vaulted chambers is placed between court R and the great hall B. West of hall B there is a smaller group of vaulted chambers. In the south wall of corridor Q´, two doors lead into an open court surrounded on three sides by a vaulted cloister, the vault of which has now fallen except for fragments in the south-east and south-west corners. These fragments are adorned with stucco decorations. I have suggested (in the Hellenic Journal, loc. cit.) that this court may be a mosque of a primitive type. (See, too, Der Islâm, vol. i. part ii. p. 126, where Dr. Herzfeld points out that a chamber somewhat similarly placed in the palace of Mshatta may also be a mosque.)
No difficulty will be found in following on the plan the arrangement of the upper floors in the northern part of the palace. In the second storey, the space marked B2 is occupied by the vault of the great hall B ([Fig. 81]). At A2 three windows open into the hall from the room in the second storey. R2 and S2 correspond with the two courts R and S. In the third storey the rectangular space A3 is unroofed, and the space B3, below which lies the vault of the great hall, is also unroofed ([Fig. 82]). The eastern part of this storey is completely ruined, but there would appear to have been rooms
