71 ', TI1K ('LAYS OF ARKANSAS. 
been filled up, but about 200 yards farther north, up the drain, 5 or 
6 feet of rather dark gray clay outcrops, and this is reported to be 
similar to that used. It contains considerable sand, and although 
not very plastic has a soapy feel when rubbed in a damp state. The 
ware made from the Sullenbarger clay is thick and somewhat por- 
ous. A combination of this clay and the Welch clay was tried by 
Mr. Welch, who reports that the mixture worked more freely than 
the Welch clay alone and that there was less liability of cracking in 
drying or burning. This bed stands 260 feet above sea level. It is 
difficult to correlate this with anyr other bed in or near the Cheatham 
section. No outcrop of lignite was observed near by, nor was any 
reported in this vicinity. This clay probably comes above the 
Cheatham section, as the clay supplied came from an elevation of 
280 feet. If these beds are to be correlated with any in the Cheat- 
ham section, it is evident that the character of the clay changes 
greatly in the distance between these localities. 
Green's clay.— In the SW. \ NW. \ sec. 5, T. 8 S., R. 15 W., a clay 
outcrops at an elevation of 440 feet about 100 yards north of Mrs. 
M. C. Green's, in a small drain that runs west into Tuns tie Creek. 
The bed is about 10 feet thick. The clay is light gray in color, is 
plastic, has little grit, and clings slightly to the tongue. 
The refractoriness of this clay is not very high, yet it is by no 
means so low as that of the Cheatham clay, which has been very 
successfully used for pottery. The percentage of sand present is 
not large enough to be injurious. The analysis of the clay, as well 
as its physical appearance, indicates that it could be successfully 
worked into ware. 
Tail's clay.— The clay at Mrs. Chloe Tail's place, in the N. \ SW. \ 
sec. 4, T. 8 S., R. 15 W., at an elevation of 370 feet, is light grayish 
in color and very plastic and carries a small quantity of rather coarse 
grained grit. It includes small lighter or white particles. 
This clay closely resembles the Bird clay, not only in physical 
appearance, but also in chemical composition, and will be found suit- 
able for all uses for which the Bird clay is available. For practical 
purposes the quantity of this clay is unlimited. 
Crowded s clay. — W. A. Crowder's clay is in the SE. \ NE. \ sec. 8, 
T. 7 S., R, 14 W. About 4 feet of the bed is exposed in the banks 
and bed of a small drain that flows into Miller Creek at an elevation 
of about 290 feet above sea level. The clay can be seen only in a 
weathered condition, but as such it is very tough, plastic, has little 
grit, and is one of the whitest clays examined. 
In refractoriness this clay comes among those so much used for 
pottery about Benton, Ark., and just below the finest china clay 
from Cornwall, England, which it very much resembles in chemical 
composition. There can be no doubt that it is of the best quality. 
