Waves of sand and snow and the eddies which make them . Fig. 2. Farther east we began to ascend a sand-buriedtract, the individual sandhills being at first round-topped and of indefinite shape. Later I saw onthe north of our route large sand-dunes in con-secutive parallel ridges. A group of four hadquite the appearance of a train of waves. Thelong, gentle slope was on the west, and therewas a steeper slope on the east, but the windnow daily prevalent was opposite to that whichmust have produced this form. The presentmoderate breeze was blowing up the steep eastface, eddying on the west of its
Waves of sand and snow and the eddies which make them . Fig. 2. Farther east we began to ascend a sand-buriedtract, the individual sandhills being at first round-topped and of indefinite shape. Later I saw onthe north of our route large sand-dunes in con-secutive parallel ridges. A group of four hadquite the appearance of a train of waves. Thelong, gentle slope was on the west, and therewas a steeper slope on the east, but the windnow daily prevalent was opposite to that whichmust have produced this form. The presentmoderate breeze was blowing up the steep eastface, eddying on the west of its summit, where. X! SPS CL, 63 DESERT SAND-DUNES 65 a ridge was growing with a steep lee cliff to thewest and the original east cliff for its weather each of the four large sand-dunes presentedthe appearance of a wave with its crest curled back(Fig. 2). It was evident that if the present windpersisted long enough these sand-dunes would becompletely reversed, for the eastern faces were,no doubt, being flattened.
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Keywords: ., bookcentury1900, bookdecade1910, bookidwavesofs, booksubjectwaves
