antechamber must have been roofed with a continuous vault laid at right angles to, and possibly higher than, the vault of the lîwân. The antechamber communicates with corridor 11. Courts M and N, on the south side of court B, are the counterpart of courts K and L. The southern end of the antechamber is exceptionally well preserved, and the arched doorway leading into corridor 42 is standing (Plate 56, Fig. 2). Part of the vault of corridor 42 can be seen in Plate 57, Fig. 1. The cross-passage connecting corridors 20, 11 and 12 affords communication with the western courts, which form three units, all exactly alike, except for slight variations in width. Each unit consists of a pair of courts and two groups of rooms. A shallow lîwân group lies at the east end of each of the forecourts, O, Q, and S (Plate 57, Fig. 2). Doors from the passage are placed in the side chambers of the lîwâns, and corresponding doors open into the courts. As far as I could ascertain the courts communicated with one another, but the division walls are ruined, often down to ground-level, and it is hard to decide between a doorway and a breach. At the west end of the courts stands a more important lîwân group with an antechamber (Plate 58, Figs. 1 and 2, and Plate 59, Fig. 1). In no case is there a door in the back of the lîwân, but communication with the posterior court is provided by means of a narrow vaulted passage (59, 67 and 75) placed to the south of the lîwân group.[46] There is no latitudinal chamber in the posterior courts, but a small additional chamber (58, 66 and 74), possibly for domestic purposes, lies on the northern side of each lîwân group. A corridor (79) leading out of court N bounds these courts to the south, and at right angles to it another corridor (80) bounds them to the west. The outer wall of No. 80 is ruined to the foundations, and I could not see whether there were doorways opening into the park. There were clear traces of doors leading into this corridor from courts P and T. Parallel to No. 79, but wholly separated from it, runs the continuation of corridor 43, which, after passing round the south side of court N, turns at right angles and opens at its western end into the park (Plate 59, Fig. 2). To the south of these corridors lies a large court, U, with remains of an arcade along its northern side. The space between the arcade and the wall of corridor 43 was probably vaulted; at its southern end it opens into the corridor. Court U is almost square (51 × 51·70 metres). To the west and south its walls are ruined, but on the west side great heaps of stones furnish indications of a gate. On the opposite side of the court there is another gateway of which a considerable part is standing. It is situated at the west end of a rectangular area, court V, arcaded on either side, which must have been intended for a private pleasure-ground or a place for games (Plate 60, Fig. 1). The latter is the more probable conjecture, since there is no