192 
AUG. F. FOERSTE 
short distance northwest of the house. City quarry; about 1 
mile southeast of New London on one of the main roads crossing 
Salt River. Susan Kenney farm; 1 mile north of New London, at 
the top of the bluff northwest of the bridge crossing a southern 
tributary of Salt River. Buford Cave; on the M. F. Meyer farm, 
2 miles west of New London, and then | mile north to a point 
where the road turns west, near the eastern margin of section 2. 
J. H. Smith farm; on south side of Salt River, 1 mile northeast of 
Conn’s Ford, near the western edge of section 27, in R 5 W, T 
56 N. Conn’s Ford; in bed of Salt River, about 4 miles north- 
west of New London, in northwestern corner of section 33, R 
5 W, T 56 N. Big Creek; on the W. G. Harvey farm, about 1 
mile northwest of Conn’s ford, in the western edge of section 
29. Northwest of Spalding springs about 1 mile, at the southern 
end of section 23 in R 6 W, T 56 N, southwest of the home of 
H. W. Ogle. 
19. UNCONFORMITIES AT TOP OF KIMMSWICK LIMESTONE OF RALLS 
AND PIKE COUNTIES 
In the central and western parts of Ralls County the so-called 
Kimmswick limestone is overlaid directly by the Devonian. 
This includes all localities west and northwest of New London. 
In the eastern part of Ralls County, however, the Buffalo shales, 
typically exposed along Buffalo Creek, in Pike County, intervene. 
An excellent exposure of the Buffalo shales is found in the east- 
ern part of section 29, about 3 miles northeast of New London, 
and about miles east of Salt River Switch railroad station. 
They are well exposed also south of the home of W. H. Benham, 
on the head waters of the western branch of Peno Creek, about 
3 miles south of Frankford, in the southern part of section 15. 
Here the Buffalo shales are underlaid by coarse grained lime- 
stone, 4 feet thick, containing an undescribed species of N ileus, 
(See under section 39 in Description of Species). Another 
excellent exposure of Buffalo shales occurs 3 miles east of Frank- 
ford, on the road to Louisiana. Here a knob formed by the 
shales contains a large Rhynchotrema (See under 11, Rhyncho- 
