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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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 |
第15・16・17・18砂丘湖と第19砂丘湖の一部のスケッチ。1) 北北東から南南西まで、2) 東南東から西北西までの断面図。SKETCH OF BAJIR NO. 15, 16, 17, 18 AND PART OF 19. VERTICAL SECTION FROM 1) NNE. TO SSW. 2) FROM ESE. TO WNW. |
366 THE TSCHERTSCHEN DESERT.
sequence of its lighter consistency, it foams as it falls, that is the wave breaks away from its crest and plunges down into the trough to the leeward. The sand-waves disseminate themselves over the desert towards the west in concentric circles, cor-
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Fig. 318. SKETCH OF BAJIRS NO. 15, x6, 17, I8 AND PART OF 19. VERTICAL SECTIONS FROM
I) NNE. TO SSW. AND 2) FROM ESE. TO WNW.
responding to the ripples which arise on the surface of a tranquil pond when you fling a stone in. Here too the waves follow one another, and diminish in force in proportion as they travel away from their source, though indeed they speedily come
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