[7] For a discussion of the modern theories as to the laws governing climatic changes and the possibility of their cyclical recurrence, see Huntington, "The Pulse of Asia," pp. 365 ff. It seems most probable that the changes are of solar origin, the variations being caused by varying forms of heat and other energy received from the sun. Such changes would be more intensely felt in mid-continental areas, where high mountains tend to intercept moisture from the sea, which is precipitated without hindrance in the peripheral or coastal regions.
[8] See above, pp. [340] ff. For photographic reproductions of clay figurines from the South Kurgan, see the plate facing p. 352. It will be noted that the figurines are clearly of the Babylonian type. The resemblance may be emphasized by contrast with the terra-cotta figurines of a very much later date discovered by Dr. Stein at Yotkan; see "Ruins of Khotan," p. 261. Moreover, lapis-lazuli is already found in the second culture of the North Kurgan. This points to commercial intercourse with regions still further east on the part of the Anau settlements; but the employment of lapis-lazuli by the Sumerians may be cited as further evidence in favour of some early cultural connection on their part with Anau.
[APPENDIX II]
A CHRONOLOGICAL LIST OF THE KINGS AND RULERS OF SUMER AND AKKAD
I. THE EARLIEST RULERS OF SUMER AND AKKAD
