332 GLACIAL FORMATIONS OF ERIE AND OHIO BASINS. 



At Weibels Corners, 4 miles northeast of Liberty, Mr. Burt made a 

 well in which the blue clay below the surface yellow till was peculiarly 

 soft, sticky, and free from pebbles, so that it could be unrolled from the 

 auger like putty. In Liberty, at the Pyle House, a bed of muck and leaves 

 was struck by the same well driller about 35 feet from the surface, below 

 a blue till. Between the muck and the underlying rock was a sand bed 15 

 feet in thickness. 



In Liberty two gas wells have been made, of which one, on high ground 

 in the east part of town, penetrated about 90 feet of drift; the other, on low 

 ground in the west part of town (29 feet below the level of the railroad 

 station, or 940 feet above tide), penetrated 70 feet of drift, mainly till. The 

 drift in these wells is much thicker than the average on uplands in Union 

 County. In the southeastern part of the county the thickness averages 

 scarcely 10 feet over a tract comprising several square miles; and the large 

 creeks in the county, which have cut channels 30 to 50 feet below the level 

 of the uplands, usually reach the rock. It is probable that the average 

 thickness is not more than 50 feet. 



In southeastern Wayne County, also, the deeper ravines reach the rock 

 at 50 to 60 feet below the upland plain, which in the vicinity of the village 

 of Boston is verj^ level. 



Two short gravel ridges, which should perhaps be classed as eskers, 

 were observed in the north part of Warren County, Ohio, east of Springboro. 

 The longer one has a length of about a mile and trends west-northwest to 

 east-southeast, while the shorter one has a length of about one-half mile and 

 trends north to south. The shorter one has its southern terminus in Clear 

 Creek Valley about a mile east of the eastern terminus of the longer one, 

 the latter being situated entirely in Clear Creek Valley. The bearing of 

 striae in that vicinity, as shown above, ranges from about southeast to S. 

 70° E. The longer ridge, therefore, approaches more nearly the direction 

 of the striae than does the, shorter one, but neither is strictly in harioony 

 with them. At the southern end of the shorter ridge a spur leads off abruptly 

 to the east for a few rods and there dies away. This turn of the southern 

 end of the shorter ridge and the bedding in the longer ridge indicate that 

 the direction taken by the water which formed the ridges was eastward, or 

 the reverse of the present course of drainage along Clear Creek. No delta 

 deposit nor eastward continuation of gravel deposits was found beyond the 



