PULASKI COUNTY 167 
Potash (K 2 0) 0. 06 
Soda (Na 2 0) 69 
Water (loss on ignition) 13. 54 
100. 98 
Very fine sand 25 
Water at 110°-1 15° ( 62 
This contains a large amount of iron, but it is probable that mate- 
rial found at greater depth will contain less iron than that nearer 
the surface. 
White pisolitic clay is also exposed in the NE. \ NE. J sec. 10, less 
than half a mile southeast of the railway station. This material 
crops out in the road. Just south of the road, about 15 paces from 
it, a well was at one time put down, and the following is reported 
as the section passed through: 
Section in well in sec. 10, T. 1 S., R. 13 W. 
Feet. 
Yellow clay soil (dug) 3 
Pisolitic clay (dug) 14 
Pisolitic clay (bored) , 14 
31 
The clay was not penetrated at this depth, so that its total thick- 
ness is not known. This well record is also said to bear out the sug- 
gestion that the clay becomes softer and cleaner as the depth increases. 
The extent of this deposit is not known, but it probably does not 
exceed 5 acres. 
The analysis given below shows that this material contains less 
iron than the sample taken near Mr. Hopkins's place, in the same 
section. 
Analysis of pisolitic clay, NE. -} NE. \ sec. 10, T. I S., R. 13 W. 
Silica (SiO,) 48. 05 
Alumina (A1 2 3 ) 38. 92 
Iron (ferric) oxide ( Fe 2 ( ) 3 ) 1. 19 
Lime (CaO) 58 
Magnesia (MgO) 45 
Potash (K 2 0) 18 
Soda (Na,6) 28 
Water < loss on ignit ion > . . 10. 86 
100.51 
Water lost at I L0°-] L5° C 46 
Another deposit, which shows in the form of bauxite at the sur- 
face, but which will probably be found to contain a pisolitic clay a 
short distance below the surface, occurs in the SW. \ SE. \ sec. 2, 
T. 1 S., R. 13 W., and nearly or quite on the line between sees. 2 and 
11, the greater part of it lying between the forks of the road at this 
point. The total area covered by this deposit probably does not 
