国立情報学研究所 - ディジタル・シルクロード・プロジェクト
『東洋文庫所蔵』貴重書デジタルアーカイブ
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| 0408 |
Ruins of Desert Cathay : vol.2 |
| 中国砂漠地帯の遺跡 : vol.2 |
引用情報
OCR読み取り結果
was a strangely refreshing sight for eyes which had almost
forgotten to associate with mountains aught but rock,
detritus, and snow.
My delight was still greater when I reached the broad
grass-covered ridge which at an elevation of about 12,380
feet forms the watershed. A grand panorama spread out
before us, comprising to the south and south-east a long
line of snow-clad peaks which belong to the western
To-lai-shan range, and with their drainage give rise to the
Po-yang Ho (Fig. 220). The wide gravel bed of the latter
spread itself in the valley below us. Some particularly
striking massifs to the south-east, bearing big beds of
snow on their slopes, proved subsequently to attain heights
over 19,000 feet, as ascertained by clinometrical observa-
tion. Westwards we were particularly glad to be able to
recognize a number of peaks of the To-lai-shan and of
the northernmost range, which had been sighted from our
plane-table stations above Ch'ang-ma. So it was possible
for the Surveyor to complete the mapping of a good deal
of interesting ground which so far had been entirely a
cartographical blank.
Tu-ta-fan proved, in fact, quite an ideal 'hill station.'
Amongst other orographical points, it permitted us to
make certain that the Richthofen range of the Nan-shan,
which with its snow-clad peaks dominates the plains
between Su-chou and Kan-chou, has its direct continuation
in the bold, but considerably lower, chain which runs north
and east of Ch'ang-ma, and through which we had passed
in the gorge of Yen-mên-tzŭ. But it was, as subsequent
observations convinced me, not merely the lesser height
of the western part of the range which would account for
its utter barrenness as compared with the part we were
now beginning to survey. The change in vegetation, first
noticed in such striking fashion on my visit to the Tu-ta-
fan, was but an indication of the altered climatic conditions
of the whole region into which we were now about to
pass near the plateau occupied by the 'Great Wall.' We
were here leaving behind the extreme eastern limits of
the great arid basin of innermost Asia, and were
entering that portion of Kan-su which is affected in its
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382
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540
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553
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567
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581
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594
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605
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617
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629
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642
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657
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670
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683
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696
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709
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723
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736
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749
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760
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771
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783
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793
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803
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813
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