278 CHARLES S. PROSSER 
Total 
Thickness thickness 
No. feet. feet. 
6. Soil and drift - - : - . - - - S416) 56% 
5. Grayish sandstone layers, about I foot thick, but with some shaly 
partings. Berea grit’ - - - - - - - = AG 50% 
4. Arenaceous shales - - = - - - - : =e 37% 
3. Argiilaceous shales - - - - - - - =) Oh 33% 
2. Aconcretionary layer of sandstone, which is thought to repre- 
sent the base of the Berea grit - - : - - - T= 27 
1. Argillaceous shales to the creek level ; in the lower part are red- 
dish-gray spots which give them a slightly mottled appearance, 
Bedford shale * - - - - - - . - - 26 26 
In the above section the concretionary sandstone — No. 2— 
is regarded as marking the base of the Berea grit instead of the 
higher sandstones of No. 5, because No. 2 is thought to repre- 
sent the concretionary sandstone noted on the bank farther up 
the creek, which was determined by level to correspond approxi- 
mately with the base of the sandstones on the other side of the 
creek, where the entire formation is shown. 
In the deeply drift-covered eastern part of Franklin county, 
which is also true of Fairfield county on the east and Pickaway 
county to the south, there are but few outcrops of the Sunbury 
shale. Dr. Orton noted its occurrence at one locality in Fair- 
field county, and his statement was that ‘it undoubtedly exists 
in Pickaway and Fairfield counties, though its presence has not 
been determined in either, except at a point just beyond the 
Franklin county line, to the south of Canal Winchester.” ? 
SOUTHERN OHIO. 
Benner’'s Hill. —In southern Ohio, in Ross, Pike, Scioto, and 
Adams counties, are numerous outcrops of the Sunbury shale, 
and its distribution may be readily traced across that portion of 
the state. In this paper only a few of these outcrops will be 
described, and they have been selected at some distance from 
each other in order to fairly represent the character of the 
formation across the southern part of the state. 
™ Anearlier interpretation of this section was given in the JOURNAL OF GEOLOGY, 
Viol Xap 32/171. 
2 Geol. Surv. Ohio, Vol. III, p. 643. 
