Accordingly, the oldest works of art from Chaldæa consist mainly of books and documents in the form of clay cylinders, and of gems, amulets, and other small articles of precious stones or metals. But the recent discovery of De Sarzec at Sirgalla shows that in the very earliest period of Chaldæan history the arts stood at a level which is fairly comparable to that of the Old Empire in Egypt. He found in the ruins of the very ancient Temple of the Sun nine statues of Patesi or priest-kings of Accadian race, who had ruled there prior to the consolidation of Sumir and Accad into one empire by Sargon I., somewhere about 3800 B.C. The remarkable thing about these statues is that they are of diorite, similar to that of the statue of Chephren, which is believed to be only found in the peninsula of Sinai, and is so hard that it must have taken excellent tools and great technical skill to carve it. The statues are much of the same size and in the same seated attitude as that of Chephren, and have the appearance of belonging to the same epoch and school of art. This is confirmed by the discovery along with the statues of a number of statuettes and small objects of art which are also in an excellent style, very similar to that of the Old Egyptian dynasty, and show great proficiency both in taste and in technical execution. The discovery of these diorite statues at such a very early date both in Egypt and Chaldæa, raises a very interesting question as to the tools by which such an intractable material could be so finely wrought. Evidently these tools must have been of the very hardest bronze, and the construction of such works as the dyke of Menes and the Pyramids, shows that the art of masonry must have been long known and extensively practised. But this again implies a large stock of metals and long acquaintance with them since the close of the latest stone period.