DAEKE COUNTY. 503 



IN. FT. 



Blue clay, with pebbles Prom 3 to 18 



Fine blue clay — compact " to 1i 



Hard-pan, alternating with blue clay " 10 to 20 



•Blueclay " 3 to 9 



Bowlderclay " 10 to 20 



Total " 4U to 148i 



Average, 95 feet. 



From the above section we might be able to separate several eras or 

 divisions of Drift formation, corresponding in general with those de- 

 scribed by Dr. Newberry, in Vol. II, in his chapter on Surface Geology, 

 and almost exactly agreeing with those explained in the reports on 

 Clarke and Greene counties, by Prof. Edward Orton. 



IV. KAMES. 



The feature which, in my mind, most worthily invites our attention 

 in noticing the Drift of this region, are the great sand and gravel hills, 

 denominated "Kames" or " Eskers," which prevail so largely through- 

 out the countj^; and they are a feature, too, that can be so much more 

 thoroughly studied here than any other, for the reason that they are so 

 easily accessible. The aspect of the country would be far more monot- 

 onous did they not figure to the extent the i' do in its landscape. But, 

 what is of more consequence than serving as a relief, in an aesthetic 

 sense, they constitute the great reservoirs from which the material has 

 been supplied to construct so many fine pikes, intersecting the county 

 everywhere, and of which the people are so proud ; and which furnish 

 almost at the very spots where most desired for building and other pur- 

 poses, quantities of the most excellent sand. Moreover, these kames or 

 gravel knolls afiord very pleasant building sites, and, frequently, this is 

 enhanced by one or more inviting springs at their base. 



A more especial discussion of these, also, seems proper, as they are not 

 so universal, and, therefore, not so well known as other portions of the 

 Drift. Besides, excepting on the part of Prof. Winchell, comparatively 

 little attention has been paid to this most interesting and important 

 series of superficial deposits. 



These kames or gravel hills, which range from thirty to sixty feet in 

 height, are almost universally fashioned after one of two types: the first 

 rounded and cone-like, the Jother elongated. The latter form is the 

 more common in this country. And it is an important fact to be noted 

 with regard to them that their major axis lies invariably north-west by 

 south-east. 



