CONGLOMERATE OKOUP. PP. 11 



The following measurements will indicate the character 

 of the group at different points : 



At Quinnimont, on New River, in Fayette county, West 

 Virginia, it perhaps attains its maximum development. 

 Here, at the base, we find a conglomerate, 80 feet thick ; 

 in the middle, a great series of shales and sandstones, with 

 nine coal beds. This middle member is about 950 feet 

 thick, and is overlaid by a massive sandstone, largely con- 

 glomeratic, 150 to 200 feet thick. The coals are mostly 

 thin and variable. Only one bed is known to be Avorkable 

 over an extended area. 



The same group continues south into East Tennessee, and 

 probably into Alabama. 



Farther north, in Randolph county. West Virginia, Dr. 

 Stevenson finds it 600 feet thick, with at least one coal bed, 

 near the central portion. 



At the northern line of the State, on Cheat River, in 

 Monongalia county, the group is 325 feet thick. The top 

 is a massive sandstone, higiily conglomeratic, 175 feet. 

 thick. Under this, at some localities, a small coal bed, 

 vrith some associated shales is found, and at these places 

 the entire interval between the coal and the base is occu- 

 pied by sandstone, similar to that lying above. The coal 

 is not persistent, for at other localities it is wanting, and 

 the entire group is composed of massive conglomeratic 

 sandstone. 



Flora of the Conglomerate Gh^ouj?. 

 At numerous points where the shales associated with the 

 coal beds are exposed, we find many well preserved plants, 

 and the sandstones yield great numbers of nut-like fruits. 

 On New River, at Quinnimont, and at Sewell station, we 

 find the following plants : 



Alethopteris Helense, Lesqx. Pecopteris nervosa, Brt. 



A lonchitica, Brt. Var. ! P muricata, Brt. 



A graudifolia, Newb. 



Sphenopteris Hoeuinghausi, Brt. 



S obtusiloba, Brt. 



S macilenta, L. & H. 



S adiantoides, L & H. 



Lepidodendron selaginoides, Stern b. 

 Oalamites cannaoformis, Schloth. 



Neuropteris Sniithiana, Lesqx, 



N. tenuilblia, Brt. 



Megalopteris Hartii, Andr. 

 M. ... Sewellensis, Font. 

 Odontopteris neuropteroides, Newb. 

 O. ... gracillima, Newb. 

 Asterophyllites acicularis, Daws. 



