Hitherto there has been no great difficulty in determining the order of the monumental kings, from the position of their bricks in the principal Chaldaean ruins and the general character of their inscriptions. But the relative place occupied in the series by the later monarchs is rendered very doubtful by their records being scattered and unconnected, while their styles of inscription vary but slightly. It is most unfortunate that no writer has left us a list corresponding in Babylonian history with that which Manetho put on record for Egyptian; since we are thus compelled to arrange our names in an order which rests on little more than conjecture. The monumental king who is thought to have approached the nearest to Gurguna is Naram-Sin, of whom a record has been discovered at Babylon, and who is mentioned in a late inscription as the builder, in conjunction with his father, of a temple at the city of Agana. His date is probably about B.C. 1750. The seat of his court may be conjectured to have been Babylon, which had by this time risen into metropolitan conse quence. It is evident that, as time went on, the tendency was to remove the seat of government and empire to a greater distance from the sea. The early monarchs reign at Ur (Mugheir), and leave no traces of themselves further north than Niffer. Sin-Shada holds his court at Erech (Warka), twenty-five miles above Mugheir; while Naram-Sin is connected with the still more northern city of Babylon. We shall find a similar tendency in Assyria, as it rose into power. In both cases we may regard the fact as indicative of a gradual spread of empire towards the north, and of the advance of civilization and settled government in that direction. A king, who disputes the palm of antiquity with Naram-Sin, has left various records at Erech or Warka, which appears to have been his capital city. It is proposed to call him Sin-Shada. He constructed, or rather re-built, the upper terrace of the Bowariyeh ruin, or great temple, which Urukh raised at Warka to Beltis; and his bricks are found in the doorway of another large ruin (the _Wuswas_) at the same place; it is believed, however, that in this latter building they are not in situ, but have been transferred from some earlier edifice. His reign fell probably in the latter part of the 18th, century B. C.