Fig. 30.—Bird's-eye view of the fortress of Semneh; restored by Charles Chipiez.
For our restoration (Fig. [30]) we have had to depend very little upon conjecture.[42] The only flight of fancy in which we have indulged is seen in the extra height which we have given to the tower at the north-eastern angle of the building. It seemed to us probable that at some point upon such a lofty terrace there would be a belvedere or watch-tower to facilitate the proper surveillance of the country round about. For the rest we have merely re-established the upper part of the works and restored its depth to the ditch, which had been filled in by the falling of the parapets. The line of walls and bastions can be easily followed except at one point upon the southern face, where a wide breach exists. The destruction of this part of the wall alone and the clearing of the ground upon which it stood, suggests that it was broken down by man rather than by time. It is probable that the fortress was taken by some Ethiopian conqueror, by Sabaco or Tahraka, and that he took care to render its fortifications useless in a way that could not be easily repaired.
Our view of the fort shows it as it must have appeared from a hill in the Libyan Chain, to the south-west. The engineer lavished all his skill on rendering the castle impregnable from the side of the desert. An attack upon the flank facing the stream was impossible; on that side the walls rested upon precipitous rocks rising sheer from the rapids of the Nile.
The trace of the walls was a polygon not unlike a capital L. The principal arm was perpendicular to the course of the river. Its flat summit (see Fig. [30]) was about 250 feet by 190 feet. The interior was reached by a narrow passage in the thickness of the masonry, the entrance to which was reached by an inclined plane. The entrance is not visible in our illustration but the incline which leads to it is shown. The walls on the three sides which looked landwards were from fifty to eighty feet high, according to the ground. They increased in thickness from twenty-six feet at the base to about twelve or thirteen at the summit. Externally their upper parts fell backwards in such fashion that no ladder, however high, would have availed to reach the parapet. We find a similar arrangement in the walls of a fortress represented at Beni-Hassan (Fig. [31]).[43]
Fig. 31.—A besieged fort, Beni-Hassan; from Champollion, pl. 379.
The walls of Semneh were strengthened, both structurally and from a military point of view, by salient buttresses or small bastions on all the sides except that which faced the river. These buttresses were either twelve or thirteen in number and from six to eight feet wide at the top. In the re-entering angle which faces north-west there is a long diagonal buttress, by the use of which the engineer or architect at once economized material and protected a weak part of his structure in a most efficient manner. The salient angles of the enceinte were protected by double towers, very well disposed so as to command the ditch. A symmetrical regularity is not to be found here any more than in the funerary and religious structures of Egypt. The curtain wall between two of the towers on the southern face is broken up into small buttresses of various degrees of salience, instead of being planned on a straight line like the rest.
Fig. 32.—Siege of a fortress; from the Ramesseum, Thebes.