212 J. J. STEVENSON CARBONIFEROUS OF APPALACHIAN BASIN 



stone. The boring at Glenville, 8 miles northwest from Stouts mills, 

 begins at the Morgantown horizon, but that sandstone is replaced and the 

 record shows red beds extending from 192 down to 340 feet below the 

 Pittsburg. Sandstone is unimportant, even that in the Mahoning in- 

 terval being only 39 feet, ending at 534 feet below the Pittsburg. A 

 coal bed at 444 feet may be the Brush Creek horizon. The Tanner well, 

 in western Gilmer, shows that the sandstones are wholly insignificant, 

 but the red beds are more than 200 feet thick; a similar condition is 

 shown by records in southwestern Gilmer near the Calhoun border. 



The records in Calhoun are a little obscure and determinate boundaries 

 between the formations can hardly be set. The sandstones are variable, 

 one record showing 83 feet in three beds, while another shows 152 feet in 

 four beds. The red beds are important, but they are differentiated in 

 only one record which shows 



111 feet, beginning at 53 feet below the Pittsburg; 

 20 " " " 169 " 



71 " " " 214 " 



10 " " " 338 " " " " 



122 " " " 403 " 



the place of the Pittsburg bed being assumed, as the bed is absent; the 

 reds make up at least three-fifths of the Conemaugh section. A coal bed 

 appears in one record at 113 feet below the assumed place of the Pitts- 

 burg. 



In Eoane county, west from Calhoun, the Spencer record shows only 

 40 feet of sandstone in the Conemaugh, and the first great sandstone is at 

 495 feet, most probably wholly in the Allegheny. A great red bed, 140 

 feet thick, begins at 153 feet below the place of the Pittsburg, which is 

 represented in another well by 80 feet, beginning at 112 feet; lower beds 

 are reported here and there in records, but they have no relation to each 

 other. In a record obtained 10 miles southwest from Spencer the only 

 red is a bed 35 feet thick, beginning at 55 feet below the place of the 

 Pittsburg. Throughout the north and west parts of the county the sand- 

 stones are insignificant and coal is altogether absent. 



Jackson county, west from Eoane, is south from Wood along the Ohio 

 river. The records are difficult to interpret, but less so for the Cone- 

 maugh than for the Allegheny. A record in the southern part of the 

 county shows no sandstone in the upper part of the Conemaugh, but red 

 beds are distributed throughout the formation. At Eavenswood, on the 

 Ohio, 17 miles east from Pomeroy, Ohio, a coal bed, evidently the Pitts- 

 burg, is at 1,364 feet above the Logan sandstone. At Letart, 10 miles 

 farther west, the Pittsburg is 1,354 feet above that sandstone. In con- 



