The only moulding, if we may call it so, borrowed by Assyria from Chaldaea, and employed commonly in both countries, is a brick one. Loftus was the first to point it out. He discovered it in the ruined building, doubtless an ancient temple, in the neighbourhood of Warka, and called by the natives _Wuswas_. This is his description:--"Upon the lower portion of the building are groups of seven half-columns repeated seven times--the rudest perhaps which were ever reared, but built of moulded semicircular bricks, and securely bonded to the wall. The entire absence of cornice, capital, base or diminution of shafts, so characteristic of other columnar architecture, and the peculiar and original disposition of each group in rows like palm logs, suggest the type from which they sprang."[311] With his usual penetration, Loftus divines and explains the origin of these forms. The idea must have been suggested, he thinks, by the palm trunks that were used set closely together in timber constructions, or at regular intervals in mud walls. In either case half of their thickness would be visible externally, and would naturally provoke imitation from architects in search of ornament for the bald faces of their clay structures.[312] [Illustration: FIG. 100.--Facade of a ruined building at Warka; from Loftus.] As to the effect thus obtained, the rough sketch given by Loftus hardly enables us to decide (see Fig. 100). From Assyria, however, come better materials for a judgment. We there often find these perpendicular ribs, generally in groups of seven, in buildings that have been carefully studied and illustrated upon a sufficient scale. We give an example from one of the harem gates at Khorsabad (Fig. 101), by which we may see at once that an ornamental motive of no little value was afforded by these huge vertical reeds with their play of alternate light and shadow, and the happy contrast they set up between themselves and the brilliant hues of the painted walls and enamelled bricks. The whole had a certain elegant richness that can hardly be appreciated without the restoration, in every line and hue, of the original composition.