MAIN MORAINIC SYSTEM OF THE SCIOTO LOBE. 415 



W. E. ParroTt's 60 feet and at William Stinsou's 44 feet were i^euetrated 

 without reaching rock, and other wells show 30 feet or more. 



Near Spout Spring station, midway between Greeniield and Bain- 

 bridge, there are exposures of horizontally bedded, well assorted di-ift, 100 

 feet or more in thickness, some of the alternating beds being of fine sand 

 and others of .coarse cobble. Large masses of cemented gravel and cobble 

 occur at different horizons from the base to within 30 feet of the top. The 

 pebbles are composed largely of the local shales, but limestone and sand- 

 stone pebbles and Canadian crystallines are not rare. The elevated hills 

 in that vicinity are very thinly coated with drift, but along Paint and Buck- 

 skin creeks it is in many places 100 to 150 feet thick, filling up the valleys 

 and resting on the slopes. 



At Greenfield drift exposures in the west bluff of Paint Creek show 

 50 feet of till, but a short distance west, on higher ground, rock is near the 

 surface. 



In the several members of the morainic system, from Ross and High- 

 land counties northward to the combined moraine in Clark County, the 

 general thickness of the drift falls between 50 and 100 feet, there being, 

 as a rule, 20 to 30 feet more of drift in the morainic tracts than on the 

 bordering plains. The following represent the more important well records 

 collected: Josiah Hopkins's well, in the fourth or inner member, a few 

 miles east of Washington, passes through 70 feet of till and does not reach 

 rock. At Washington the gas well penetrates 70 feet of drift, mainly till. 

 B. F. Coffman's well, in the south part of the village, penetrates 60 feet of 

 till. At Milledgeville the fiom-ing mill well, 70 feet in depth, does not 

 reach rock. 



Wells in Jamestown enter rock at about 12 feet, but the moraine near 

 Jamestown rises about 50 feet above the altitude of the village, and it is 

 probable that the drift has a corresponding increase in thickness. 



At South Solon a well at Harrod's drug store, 187 feet in depth, pene- 

 trates 140 teet of drift, largely till. At A. Gorden's, on the crest of a 

 morainic ridge one-fourth mile west, a well boring 165 feet in depth is 

 thought to have terminated in drift. 



At Midway the town well has a depth of 51J feet through till, and a 

 well at a blacksmith shop has a depth of 54 feet. Neither of them enter 

 the rock 



