One constant surprise to modern explorers is the extraordinary quantity of domestic crockery the remains of which surround old eastern cities; and almost yet more of a surprise it is how far and how widespread are certain easily recognized specialities, such, for instance, as the so-called "celadon." Chips and fragments of celadon are to be found from Babylon to Seistan, from Seistan to India, in Afghanistan, Kashmir, Burma, Siam. In Siam are all that remains of what were probably the original furnaces. Every shower of rain that falls in this extended cemetery of crumbling monuments reveals small treasures in the way of rings, coins, seals, etc. Much of the cultivation and of the extent of population indicated by the ruins in this narrow valley must have existed in the times of Alexander of Macedon and the Ariaspians, and we find no difficulty in accepting the Helmund (or Etymander) as the line of route which he followed for a certain distance. Indeed, there is much more than a passing probability that he followed the line which gave him water and supplies as far as the junction of the Argandab and Helmund, for the problem of crossing the desert from the Helmund valley to Nushki and the cultivated districts of Kalat is a serious one--one, indeed, which gave the Russo-Afghan Boundary Commissioners much anxious thought. But beyond the Argandab junction it is extremely improbable that Alexander followed the Helmund. The Helmund and its surroundings have been carefully surveyed from this point through the turbulent districts of Zamindawar for 100 miles or more, and again from its source near Kabul for some fifty miles of its downward flow. The Zamindawar section of the river affords an open road, although the river, as we follow it upward, gradually becomes enclosed in comparatively narrow (yet still fertile) valleys, and rapidly assumes the character of a mountain stream. North of Zamindawar and south of its exit from the Koh-i-Baba mountain system to the west of Kabul, no modern explorer has ever seen the Helmund. It there passes through the Hazara highlands, and although we have not penetrated that rugged plateau we know very well its character by repute, and we have seen similar country to the west where dwell cognate tribes--the Taimani and the Firozkohi. This upland basin of the Helmund to the west of Kabul and Ghazni, this cradle of a hundred affluents pouring down ice-cold water to the river, is but a huge extension southwards of the Hindu Kush, and from it emerge many of the great rivers of Afghanistan. To the north the rivers of Balkh and Khulm take a hurried start for the Oxus plains. Westward the Hari Rud streams off to Herat. South-westward extends the long curving line of the Helmund, and eastward flow the young branches of the Kabul. A rugged mountain mass called the Koh-i-Baba, the lineal continuation of the Hindu Kush, dominates the rolling plateau from the north and continues westward in an almost unbroken wall to the Band-i-Baian looking down into the narrow Hari Rud valley. It is a part of the continental divide of Asia, high, rugged, desolate, and almost pathless.