Photo by] (Dr. Vaughan Cornish. 
AEOLIAN SAND-WAVES. 
The stronger and more persistent force has drilled out the numerous hollows and piled up the 
Two different forces of wind have combined to form this beautiful sand panorama. 
r the whole surface. 
larger ridges, while a gentler current of air sweeping over the whole plain has produced the delicate"ripples ove 
