PLATE I. FIG. A. DUNES ON THE COAST OF NEW JERSEY. Contour 

 interval, 10 feet. Seale, about 1 mils per inch. (Long Bc%ch, New Jersey, 

 Sheet, U.S. Geological Survey.) FIG. B. DUNES ALONG THE ARKANSAS 

 RIVER IN SOUTHWESTERN KANSAS. Contour interval, 20 feet. Scale, about 

 2 miles per inch. (Garden, Kansas, Sheet, U.S. Geological Survey.) 



