Some idea of the extent of the mounds of Warka may be gathered from Loftus's plan. The irregular circle of the mounds, marking the later walls of the city, covers an area nearly six miles in circumference, and in view of this fact and of the short time and limited means at his disposal, it is surprising that he should have achieved such good results. His work at Buwârîya, the principal mound of the group (marked A on the plan), resulted in its identification with E-anna, the great temple of the goddess Ninni, or Ishtar, which was enormously added to in the reign of Ur-Engur. Loftus's careful notes and drawings of the facade of another important building, covered by the mound known as Wuswas (B), have been of great value from the architectural point of view, while no less interesting is his description of the "Cone Wall" (at E on the plan), consisting in great part of terra-cotta cones, dipped in red or black colour, and arranged to form various patterns on the surface of a wall composed of mud and chopped straw.[25] But the date of both these constructions is uncertain. The sarcophagus-graves and pot-burials which he came across when cutting his tunnels and trenches are clearly contemporaneous with those at Abû Hatab, and the mound may well contain still earlier remains. The finds made in the neighbouring mounds of Senkera (Larsa), and Tell Sifr, were also promising,[26] and, in spite of his want of success at Tell Medîna, it is possible that a longer examination would have yielded better results. [Illustration: MUKAYYAR after Taylor] The mounds of Mukayyar, which mark the site of Ur, the centre of the Moon-god's cult in Sumer, were partly excavated by Taylor in 1854 and 1855.[27] In the northern portion of the group he examined the great temple of the Moon-god (marked A on the plan), the earliest portions of its structure which he came across dating from the reigns of Dungi and Ur-Engur. Beneath a building in the neighbourhood of the temple (at B on the plan) he found a pavement consisting of plano-convex bricks, a sure indication that at this point, at least, were buildings of the earliest Sumerian period, while the sarcophagus-burials in other parts of the mound were of the early type. Taylor came across similar evidence of early building at Abû Shahrain,[28] the comparatively small mound which marks the site of the sacred city of Eridu, for at a point in the south-east side of the group he uncovered a building constructed of bricks of the same early character.