56 



Trans. Acad. Sci. of St. Louis. 



ing rocky bluffs, such as the Chalk Bluffs of the Smoky Hill 

 river. In some places the erosion gives rise to canons and 

 buttes. Some of the rivers have a scant supply of timber, 

 which increases as one goes east, but often the valleys are 

 treeless as the Cimarron. The region covered by the Red- 

 beds is characteristically sandy, as is much of the region to the 

 north as far as the Arkansas river. 



In the eastern part of the State, the timber along the water- 

 courses increases, and in many places extends over the 

 uplands. The prairie regions are restricted to smaller areas. 

 Limestone hills are a prominent feature of the landscape. In 



9000 ft. SODOft. 1000 ft. 



MAP OF KANSAS. 



(Reduced, from 8th Kept. Kansas Bd. Agriculture.) 



the southern part are found the Flint hills extending from 

 Chase to Chautauqua County. Salt plains are found in Stafford 

 and Reno Counties. 



One of the most important factors in determining the dis- 

 tribution of vegetation is the rain-fall. 



The two eastern tiers of counties have above 41 inches. 

 The next tier or so 30 to 40 inches. Three-fourths of the 

 State has usually less than 30 inches, the amount decreasing 

 westward. 



There is usually not much snow during the winter, and 

 when it comes it usually remains upon the ground only a short 

 time. The temperature varies between — 25° F. and 110° F. 



