134 OTL AND GAS; OHIO, WEST VIRGINIA, PENNSYLVANIA. 
a short distance to the west, shows the interval to be 24 feet less. 
The McNary well record was used owing 1 to the better determination 
of the elevation of the coal. 
Wells Nos. 811 , 819, 816 , 820 , and 823 .—The records of these wells, 
which were used in the convergence sheet of the Burgettstown quad¬ 
rangle, have been given in the discussion of the correlation of the 
Berea oil sand with the sands of Pennsylvania on page 109. 
Well No. 813 .—This well is on the farm of J. 8. McCorkle, and its 
mouth is at an elevation of 1.040 feet. No good outcrop was found 
close to the well. The position of the Pittsburg coal as noted in the 
well record was accepted. 
Log of J. S. McCorkle ivell (No. 813). 
Top. 
Bottom. 
Conductor. 
Feet. 
10 
70 
510 
700 
875 
1,070 
1,855 
Feet. 
Coal, Pittsburg. 
75 
Sand, Dunkard. 
Coal. 
Sandstone. 
Sand, Big Injun. 
Sand, Hundred-foot... 
1,865 
1,888 
Total depth. 
The distance between the Hundred-foot sand and the Pittsburg 
coal at this point is therefore 1,855 feet minus 75 feet, or 1,780 feet. 
Well No. 800 .—This well is on the farm of J. 8. Hays, the eleva- 
tion of its mouth being 1,125 feet. The Pittsburg coal is noted in the 
record at a depth of 95 to 103 feet, which agrees with outcrops in the 
vicinity of the well. 
Log of J. 8. Hags well (No. 800). 
Top. 
Bottom. 
Coal, Pittsburg. 
Feet. 
95 
975 
1,195 
1,970 
Feet. 
103 
Sand, Salt. 
Sand, Squaw. 
1,520 
1,984 
2,019 
Sand, Hundred-foot (gas at 1,971 feet). 
Total depth. 
The distance between the Hundred-foot sand and the Pittsburg 
coal at this point is therefore. 1,970 feet minus 103 feet, or 1,867 
feet. 
Well No. 806 .—This well is on the Sankey farm. The elevation 
of its mouth is 1,365 feet. The Waynesburg “ B ” coal outcrops 
near the well at an elevation of 1,343 feet. This shows the well 
record of coal to be correct. 
