10 University of Kansas Geological Survey. 
whole state. Scarcely has one-third the distance been passed until 
the order is reversed. The eastern part has been influenced by the 
great inland swell of the Mississippi valley, the Ozark hills, while 
the western part has been more mightily influenced by the great 
Rocky mountain uplift. Could we continue our trench westward 
to the western side of the state we might find that the limestone 
and cherty floor extended that far, but most probably long before 
that distance was reached it would pass into rocks of other char- 
acter. Of this, however, we are in total ignorance, as no boring 
has yet been put down deep enough to throw any light on the sub- 
ject; but the lines of stratification marked on the walls of our trench 
would change their direction and incline eastward instead of west- 
ward. , 
