BULL. GEOL. SOC. AM. 







VOL. 13, 1901, PL. 17 







*■ Ik*-'* ' ■ ■ ' ."" .. ~ " -" •'•.• " - 



Vf 



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■■^^^mi 



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Figure 1. — South Side of Loess Delta, Nankau Pass, China 

 Loess contains many stones and beds of gravel 



Figure 2. — Loess Bluff near Kalgan 

 It is about forty feet high and contains pockets of gravel 



LOESS DELTA AND LOESS BLUFF 



