MONONGAHELA FORMATION 81 



to 187 feet above the Pittsburg coal bed; but Professor Lovejoy gives in 

 his generalized section for Meigs county a sandstone, 30 to 50 feet 

 thick, at about 270 feet above the Pittsburg. In Athens county, very 

 near the Meigs border, Professor Andrews has this sandstone at about 40 

 feet above that resting on the Uniontown coal bed, and Professor Love- 

 joy seems to have followed it around. It seems, therefore, altogether 

 probable that the lower sandstone, that overl5rLng the Uniontown coal 

 bed, has disappeared as a great sandstone throughout Meigs, as it did 

 on the Ohio river in Washington county, and that here in this higher 

 sandstone we have the equivalent of the Waynesburg sandstone belong- 

 ing to the Dunkard formation; but the Waynesburg coal bed seems to 

 be represented only by a mere blossom, as is also the Upper Sewickley 

 in Meigs county, while no trace of the Uniontown remains. 



Professor Andrews's sections show a bed of red shale 13 to 18 feet 

 thick at 164 feet above the Pittsburg in two localities; one of 14 feet 

 at 140; one of 18 feet at from 117 to 120, and one of 6 feet at 100 

 feet above the Pittsburg, while at times the upper part of the Pittsburg 

 sandstone is replaced by red shale.* 



Gallia county is south from Meigs, along the Ohio river. The Pitts- 

 burg coal bed is present in the northern part of the county, near the 

 Meigs border, but only in isolated patches, and the coal has little cover. 

 It is 4 feet 6 inches near the Meigs line, but, decreasing, is only 1 foot 

 6 inches at a few miles south. It is overlain by sandstone, which at one 

 locality near Gallipolis is broken by red shale, 10 feet, at 17 feet above 

 the coal. 



An insignificant area remains on Greasy ridge, in Lawrence county, 

 8 to 10 miles west from the Ohio river. There ]\Ir McMillin measured 

 a thickness of 4 to 5 feet. This is the last fragment in Ohio, and the 

 Monongahela is not reached by the Kentucky section.f 



WEST VIRGINIA 



Eeturning now to the east and entering West Virginia from Pennsyl- 

 vania, one finds an insignificant patch of Monongahela remaining in 

 the Blairsville-Connellsville basin, where the Pittsburg coal bed under- 

 lies a thick coarse sandstone and the Redstone coal bed, with its lime- 

 stone, is absent. Two miles westward, beyond the Monongahela river, 

 this sandstone has disappeared, and one finds a section very similar to 



* B. B. Andrews : Vol. 1, pp. 253, 25G to 278. 



E. M. Lovejoy : Vol. vi, pp. 627, 628, 629. 



I. C. White : Op. cit., pp. 83, 84, 85, 86. 

 t B. B. Andrews : Vol. 1, pp. 235, 236, 239, 240, 243. 



Emerson McMillin in personal communication. 



