170 W. C. MORSE AND A. F. FOERSTE 
: Feet Inches’ Feet 
nous parting. The lower two feet covered, but probably 
SHALES Ce cae seus Chau iete on eter alas olay Svea ismenceeete Rete 35 
Soft, blue, argillaceous shales alternating with thin to 
medium-bedded argillaceous sandstones, the shales 
predominating s ae acvat ecu cclatay cas etme cr PE eset yy ea 18 
Top of the Buena Vista member and also the top of the 
stone quarried. Even-bedded argillaceous sandstones, 
‘‘freestones,”’ with thin partings of blue argillaceous shales. 
The sandstones contain YTaonurus. The layers are 
mostly medium-bedded, that is of proper thickness for 
commercial use. Their size together with the shaly 
partings render them easily quarried. They are quite 
extensively worked and make a beautiful and excellent 
Soft, blue, argillaceous shales with three or four shaly 
sandstone partings, which contain Taonurus............ 4 6 
Soit, blue argillaceoustshalesiss-.73 a eee 7 
3. Sunbury Shale, total thiCkMess) sm cee de ete tes 16% 
Black, fissile, carbonaceous shale. 
2: Bedjord-Berea, total thickness.) 500-27 40sec 185 
Soft, blue, argillaceous and finely arenaceous tales and 
fine-grained shaly sandstone. The lower two feet have 
one or two thin layers of black, fissile shale. 
© POMVO"SHGIE > = Racacune waecatnn eine Gr Te Re ete 203 
Black; fssile“carbonaceous shales. as. e crie meats 2 
Covered to the level of the Chesapeake & Ohio Railway 
Exposures in a nearby gully and the main stream show, 
however, that all of this interval is Ohio shale.......... 18 9 
H 
Quite a variation in the thickness of the Bedford-Berea occurs 
along an east-and-west line at Olympian Springs, Bath County. 
This variation will be given here to prepare us for the remarkable 
thinning farther southward. Two sections were made within a radius 
of a mile of the Springs. In the eastern of these the horizon measured 
124 feet, in the western 5? feet, while on the opposite side of the hill 
from the latter and a half mile farther west, the thickness was only 
2inches. The Sunbury on the contrary was quite regular, measuring 
124, 12%, and 12 feet for the respective sections. 
From Olympian Springs southwestward, at least on the western 
border of the Cuyahoga outcrops, the sandstone layers of the Buena 
Vista member begin to gradually disappear. By the time Jefferson- 
