On the eastern wall, in the interior of the building, there are some ornaments made of yellow clay. They are in the form of a chevron or triangular festoon, two feet high, with an opening of a foot and a half. They commence about eighteen inches above the ground. The pillars supporting the arcades in front, have some ornaments of the same material tolerably executed, but very much defaced. A kind of niche, in the centre of the eastern wall, is destined for the marabout who officiates at prayers. In another similar niche there is a large wooden pulpit, into which the priest ascends by two or three steps, on the days when he reads certain passages of the Koran. The floor of the mosque was covered with mats, on which the people kneel during prayers. Conceiving that the description alone would not convey an adequate idea of the construction of this mosque, I ventured to make a sketch of it, as well as of the town; both would, I thought, convey a better idea than words alone of the objects with which I wish to make the reader acquainted[8]. To make my sketch of the mosque, I sat down in the street in front of it, and, covering myself in my large wrapper which I folded over my knees, I held in my hand a sheet of white paper close to a leaf of the Koran. When I perceived any one approaching, I hid my drawing, and looking at the leaf of the Koran I appeared to be absorbed in devotion. The passers-by, far from suspecting me, regarded me as one of the elect, and applauded my zeal[9]. The eastern mosque is much smaller than that on the western side. It is surmounted by a square tower, similar in form and dimensions to that of the western mosque. The walls are entirely stripped of their parget. Many buttresses have been erected to support the building. It has three arcaded avenues. The galleries are six feet wide and thirty feet long. [Illustration: MR. CAILLIÉ MEDITATING UPON THE KORAN AND TAKING NOTES.] [Illustration: VIEW OF THE CITY OF TIMBUCTOO.] The mosque itself is thirty paces long and five and twenty wide. The arcades which are three feet and a half wide and seven and a half high are built of the same bricks as those of the western mosque. There is an inner court, which must be passed through before we can ascend the tower. No part of this mosque is in ruins, though it appears very old. It is not very regularly built. I remarked that it had two gates looking to the south and one to the north. The western and eastern sides had no apertures. Near the mosque, on the eastern side, are seen a small hillock of sand, and some buildings overwhelmed by the sand blown up by the east wind.