we pitched camp on the further bank of a small stream near the village of Serrîn, for I wished to examine two towers which stand upon the crest of a high ridge about half-an-hour to the east. They are called by the Arabs the Windmills, but in reality they are tower tombs. The more northerly, which is the best preserved, is 4·20 m. square and two storeys high (Fig. 20). The walls of the lower storey rise in solid masonry to a height of about six metres and are crowned by a plain course of projecting stones, which serves as cornice (Fig. 21). On the east and west sides, just below the cornice, there is a pair of gargoyles, much weathered. They represent the head and fore-quarters of lions. A little below the pair of heads on the west side is a Syriac inscription, dated in the year 385 of the Seleucid era, _i. e._ A.D. 74, which states that the tomb was built by one Manu for himself and his sons.[27] The second storey is decorated with fluted engaged columns, four on either side, the outer pair forming the angles. The bases of these columns rest upon a course of masonry adorned with three fasciæ: it is to be noted that the mouldings are not carried straight through to the angles, but are returned one within the other like the mouldings of a door lintel. The Ionic capitals carry a plain Ionic entablature consisting of an architrave with fasciæ, which are here taken through to the corners, a narrow frieze and a cyma of considerable projection. Probably the whole was surmounted by a stone pyramid. There are two burial chambers, one in each storey. The lower chamber can be entered by a door in the east wall which was originally closed by a large block of stone. The entrance to the upper chamber, high up in the east wall between the columns, was closed in the same fashion, and the block of porphyry which sealed it is still intact.[28] Pognon, who has given the best description and illustrations of the monument, mentions five other examples of tower tombs crowned with pyramids, one of them being the southern tower at Serrîn. The well-known tower tombs of Palmyra and the Ḥaurân are not capped by a pyramid, nor is the face of their walls broken at any point by engaged columns. I believe the type illustrated at Serrîn to be compounded of the simple tower tomb and the canopy, or cyborium, tomb.[29] The cyborium tomb exists in an infinite number of variations in Syria, in the mountain district near Birejik (whence M. Cumont has supplied me with four examples, three of them as yet unpublished[30]), in Asia Minor and in the African Tripoli. Sometimes the columns stand free,[31] sometimes they are engaged in the walls,[32] sometimes they are represented only by engaged angle piers,[33] sometimes by free standing angle piers,[34] and occasionally column and pier have dropped away and the plain wall alone remains,[35] but the pyramidal roof is an almost constant feature, which, even in the simplest of these tombs, recalls the original canopy type. In the hill