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0504 Innermost Asia : vol.1
Innermost Asia : vol.1 / Page 504 (Color Image)

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doi: 10.20676/00000187
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to hand. I may also mention that near this post and the next one eastwards, T. XLII. j, short
stretches of an old canal could be traced, evidently connected with the Hsi-wan-ho.

'Tati' with Beyond T. XLII. j the line marking the wall could be made out for about another mile, after
Han pot- which it disappeared amongst tamarisk-cones in the depression eastwards. Here we had to leave
sherds. it in order to gain the well which serves as the usual halting-place on the caravan route to Ying-p'an.
Striking to the south-east from T. XLII. j, we passed, at a distance of a mile, a small 'Tati' covered
with potsherds of Han type ; this may well mark the position of a settlement extant during the early
occupation of the Limes. Another five miles across the basin previously referred to brought us
to the bare slope of a conspicuous rocky ridge. It is one of those which, as mentioned before, crop
out along the northern edge of the big peneplain dividing the valleys of the Su-lo-ho and Ch'ih-
chin rivers.³

Watch- A knoll near the north-western end of this ridge, rising about 200 feet above the brackish
tower well where our Camp 126 stood, was found to carry the ruin of a massive tower of conical shape,
behind which, though standing away from the Limes, had a distinctly ancient look. It was built of layers
Limes line. of clay reinforced with large trunks of wild poplar and measured about 33 feet square at the base.
Its top, at a height of some 12 feet, supported a small look-out platform constructed of layers of
reed fascines. This tower commands a very extensive view to the north and north-west, whereas
the view from the watch-posts of the Limes which we traced on the following day across the gravel
plateau beyond the ridge, is masked in those directions by rising ground. It is therefore likely
enough that the tower that crowns this knoll dates from ancient times and enabled the defenders
to keep a more efficient watch across the border line.

Limes wall On the morning of April 25th I sent off the baggage to Ying-p'an by the caravan track and
traced set out myself with Lāl Singh and the few available mounted men northward in search of the
across line of the Limes. It proved an interesting day's work, disclosing remains so abundant that two
plateau. more days were occupied in clearing and examining these. This work was carried out from a base
established at the oasis and with the help of Chinese labour secured there. Having skirted the
western foot of the rocky ridge and then covered about two and a half miles to the north, we struck
the line of the wall stretching straight across a wide plateau from west-north-west to east-south-east.⁴
The character of the ground, either bare clay or gravel, had helped to preserve the wall in a better
state than we had found it since leaving An-hsi.

Construc- In many places, indeed, wind-erosion had reduced it to the condition of a low gravel-covered
tion of embankment. But there remained numerous segments where it still rose practically intact to a
wall. height of 6 or 7 feet and clearly showed its construction of alternate layers of stamped clay and
fascines, each from 8 to 10 inches in thickness. The fascines along this section of the Limes were
composed mainly of tamarisk branches, easily gathered, no doubt, in the depression northward,
where, as the map shows, tamarisk growth still abounds at the present day. The clay layers were
extremely hard, though the water for compacting them must have been carried from a considerable
distance. The fact that the wall, in the well-preserved segments, was about 5 feet wide at the top
makes it appear likely that along this portion of the line the original thickness of the wall conformed
to the regular measurement found on the Tun-huang Limes, viz. 8 feet at the base.⁵