IIIFカラー高解像度
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
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| IIIFカラー高解像度 |
| Scientific Results of a Journey in Central Asia, 1899-1902 : vol.1 | |
| 1899-1902年の中央アジア旅行における科学的成果 : vol.1 |
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引用情報
CHAPTER XXII.
ON DUNE-FORMATION AND SANDY THRESHOLDS.
I had thus succeeded in crossing the Central Asian desert at one of its broadest parts, the distance being 284.5 km., equivalent to the distance between London and Liverpool, Berlin and Breslau, or Stockholm and Jönköping. Had I struck a line from any point between Tepe-teschdi and Arghan to Tatran the distance would have been about the same; for, if a circle be drawn with Tatran as centre and 285 km. as its radius, its circumference would almost exactly coincide with the arc of the lower Tarim. We struck the Tschertschen-darja 7 km. below Tatran, although it had been my object and my endeavour to steer straight for that village; my failure to achieve this purpose depended partly upon the variation of the compass, and partly upon the deviation of the chain of bajirs from the straight line leading to Tatran. But before attempting speculatively to account for this deviation, in the course of which we travelled first south-west, then south-south-west, then south, and finally even south-south-east, I add a table supplying the actual data upon which I base the following discussion.
Bajir no. I ran S. 32° W.
>> 2 » S. 310.6 W.
» 3 » S. 41°.5 W.
» 4 » 5.41°W.
» 5 » S 20° W.
» » 6 » S. 35°.5 W.
» » 7 » S. 37° W.
» 8 » S 38° W.
» 9 » S. I o°.5 W.
» Io » S. 31° W.
» » I I » S. 24° W.
» > I 2 » S. 2 I °.5 W.
» 13 » S. 12° W.
» 14 » S. 14° W.
» 15 » S. 2°.5 W.
» 16 » S. 27° W.
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