Vol. 26, Art. 5 
du Rocher, 
irie 
Zz 
— 
& 
a 
ic 
— 
=) 
isa) 
> 
es) 
= 
[= 4 
2) 
nN 
~ 
-4 
i) 
& 
~n 
in unpastured Sampson hill prairie, north of Pra 
some slumping of the loess. 
ILLINOIS NATURAL 
Steep spur front 
Fig. 6. 
Randolph County, showing 
