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0070 Serindia : vol.3
セリンディア : vol.3
Serindia : vol.3 / 70 ページ(白黒高解像度画像)

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doi: 10.20676/00000183
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1136

Section V.—THE HAN LIMES FROM YÜ-MÊN-HSIEN TO AN-HSI

High road
from Su-
chou to Yü-
mên-hsien.
The high road by which I moved on to Yü-mên-hsien after regaining Su-chou undoubtedly follows what must have always been the main line of communication for the Chinese towards Tun-huang and the Western regions. But there are no ancient remains above ground to mark it. Nor can the small areas of cultivation which are to be found, as Maps Nos. 85, 86 show, near some of the roadside stations between Chia-yü kuan and Yü-mên-hsien ever have been of any importance considering the scanty surface drainage from the mountains which traverses this plateau belt. The rugged and barren range, which we have already had occasion to notice to the north-west of Chia-yü kuan, continues with the same bearing along the great route and must have served as an effective flank protection for it on the north; for along the greatest part of its length it is quite impracticable except on foot, and the two narrow gorges in which the Po-yang Ho and the stream of Ch'ih-chin break through it are easily guarded. It was the strength of this natural barrier which first led me

Han Limes
line further
north.
erroneously to conjecture that it had been utilized for the line of the Han Limes. In reality this line had been drawn through the chain of depressions which lie to the north of the range. Want of time and of suitable transport did not allow me to visit them until 1914, and thus it was only then that I was able to trace the Han Limes right through from the Su-lo Ho to below the junction of the Su-chou and Kan-chou Rivers.

Reconnais-
sance to
Shih-êrh-
tun.
Nevertheless it was on this return journey to An-hsi that I succeeded in correctly locating the starting-point of the section of the Han Limes just referred to. On moving to Yü-mên-hsien on September 20, across the absolutely bare gravel plateau which forms the watershed between the Su-lo Ho and the drainage of Ch'ih-chin, I noticed far away to the north a string of hamlets at the foot of the low Pei-shan hills.¹ As the route map of M. Obrucheff's journey of 1894 seemed to indicate ruined watch-towers in the neighbourhood of that ground, and as the very names of the hamlets Shih-tun, 'Tower X', and Shih-êrh-tun, 'Tower XII', were obviously derived from those towers, I made on the following day a long reconnaissance from Yü-mên-hsien northward in order to visit them. It brought me after a ride of more than 16 miles across a reed-covered basin, periodically inundated by canals and overflow waters from the Su-lo Ho, to the hamlet of Shih-êrh-tun.

Bifurcation
of Su-lo Ho
drainage.
I can refer only in passing to the geographically very curious fact that the small stream which accounts for the existence of this hamlet and those lying along its line further on is undoubtedly fed from the Su-lo Ho; but its easterly course is directly opposite to that followed by the Su-lo Ho itself from the adjacent point of its great bend, as can be seen from the map. We have here a clear instance of bifurcation far away from the terminal delta of the river with which we have become familiar more than 200 miles further west.² Regarding the interesting archæological discovery, too, which rewarded this reconnaissance, it must suffice here to state the main facts; for