OUTER MORAINE OF THE MIAMI LOBE. 323 



pebbly till dotted with occasional gravel knolls. The drift is about as thin 

 there as in portions of the county outside the limits of the Wisconsin drift. 

 Many wells have struck rock at less than 20 feet. In a trip along the 

 watershed north from Mount Carmel the thickness of the drift was noted at 

 several wells, as follows: 



Thickness of drift in wells near Mount Carmel^ Ind. 



Feet. 



J. A. Applegate's well 8 



Mr. Merrill's well 4 



George Dixon's well 20 



John Schultz'a well 1.3 



George Schultz's well - 18 



Mr. Howe's well (SE. part sec. 21, Bath Tp.) 22 



North part of sec. 21 (owner not ascertained) 16 



In Howe's well there wa« — 



Section of drift in Howe well. 



Feet. 



Till 15 



Sand bed '. 2-3 



Clay 3-1 



Total 22 



At Dixon's a cistern 12 feet deep penetrated several feet of till, theii 

 passed through a black soil about 2 feet thick, and entered a whitish clay. 

 No other instance of a buried soil came to the writer's notice in this neigh- 

 borhood. Although the drift is mainly till, several gravel knolls have been 

 opened in the valleys northwest of Mount Carmel. Southea.st of Mount 

 Carmel also, near Philanthropy, there is a large gravel knoll, which is 

 described on a previous page. On the uplands west of the East White- 

 water, 2 or 3 miles north of Brookville, there are two gravel knolls', one of 

 which, near the center of sec. 7, T. 9, R. 2 W., contains a gravel pit 20 

 feet or more in depth. The gravel beds are in arching or oblique positions. 

 The well at a schoolhouse nearby, in the same section, 30 feet deep, was 

 mainly through till and did not sti'ike rock. Several other wells in the neigh- 

 borhood, 20 to 25 feet deep, do not strike rock; but rock outcrops appear 

 in a ravine east of the gravel pit at a level scarcely 30 feet below its base. 

 The variability of the drift is shown by wells, some of which are mainly 

 through till, while others are in gravel much of their depth. Bowlders are 

 iisually abundant in the vicinity of these gravel knolls. The valley of 

 Whitewater River does not contain gravel knolls at the place wliere the ice 

 sheet overhung it when the moraine was forming. The valley at this point 



