[Illustration: Fig. 141.—Mastabat el Faraun.]
[Illustration: Fig. 142.—Pyramid of Medum.]
The enormous rectangular mass which the Arabs call Mastabat el Faraun, “the seat of Pharaoh” (fig. 141), stands beside the pyramid of Pepi II. Some have thought it to be an unfinished pyramid, some a tomb surmounted by an obelisk; in reality it is a pyramid which was left unfinished by its builder, King Ati of the Sixth Dynasty. Recent excavations have, on the other hand, shown that the brick pyramids of Dahshur probably belonged to the Twelfth Dynasty. The stone pyramids of that group, which may be older, furnish a curious variation from the usual type. One of these stone pyramids has the lower half inclined at 54 deg. 41’, while the upper part changes sharply to 42 deg. 59’; it might be called a mastaba (Note 35) crowned by a gigantic attic. At Lisht, where the two pyramids now standing are of the same period (one of them was erected by Usertesen I.), the structure is again changed. The sloping passage ends in a vertical shaft, at the bottom of which open chambers now filled by the infiltration of the Nile. The pyramids of Illahun and Hawara, which contained the remains of Usertesen II. and Amenemhat III., are of the same type as those at Lisht. Their rooms are now filled with water. The pyramid of Medum is empty, having been violated before the Ramesside age. It consists of three square towers (Note 36) with sides slightly sloping, placed in retreating stages one over the other (fig. 142). The entrance is on the north, at about 53 feet above the sand. After 60 feet, the passage goes into the rock; at 174