=— 
DARKE COUNTY. 503 
IN FT. 
IBIS GMeayirs Walle JOOS BO S565 S654 Go Web eoomsseS waoreaoucs From 3 to 18 
Miner DINerel ay = COM AG alee ei tere c/ais\sa atoinin’= ols oJelorejate AS Shae elite Hat Oo SbOg Pals 
Hard-pan, alternating with blue clay...-.. .--.-..----.--..-- 10 2D 
IGUM® GEN) cusaddcdne sdeqidadbiosds papa DASUne son Saob obabed Gabe a OmLOMES 
Bo wall glare lke ny las ae ein es i a ar oe tla nM Lc “ 10. to 20 
OBEN ccc epee A * 414 to 1484 
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 “ Hskers,” which prevail so largely through- 
-out the county; 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 they do in its landscape. But, 
what is of more consequence than serving as a relief, in an esthetic 
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 afford very pleasant building sites, and, frequently, this is 
enhanced by oné 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 “other 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. 
