PULASKI COUNTY, 165 
The following is an analysis of this clay:" 
Analysis of clay from Tarpley's well. 
Silica (Si0 2 ) 45. 28 
Alumina (A1 2 3 ) - - 37. 39 
Iron (ferric) oxide ( Fe 2 3 ) 1.71 
Lime (CaO) 1. 83 
Magnesia (MgO) 29 
Phosphoric acid (P 2 5 ) 06 
Water, after having been dried at 1 10° 13. 49 
100. 05 
In the NE. i SE. i sec. 35, T. 1 N., R. 12 W., on the farm of J. M. 
Dickinson, a well 48 feet deep gives the following section: 
Section of well in sec. 35, T. 1 N., R. 12 W. 
Thin gravel at top. Feet. 
Red clay 16 
White clay 1 
Yellow pisolite (bauxite ?) 6 
White clay 25 
48 
Water was obtained before the last body of clay was passed through. 
Its actual thickness in this well is, therefore, not known. 
In Mr. Dickinson's yard, about 100 feet east of this well, another 
well shows clay at 23 feet. In the latter well the yellow pisolite 
appears at 16 feet and the 1-foot band of white clay seen in the 48- 
foot well is absent. The following is a section of this well: 
Section in well at house of J. M. Dickinson. 
Thin gravel at top. Feet. 
Red clay * 16 
Yellow pisolite (bauxite ?) 6 
Kaolinite in bottom 1 
23 
The difference in elevation of the mouths of these two wells is not 
more than 4 feet. The specimens of clay obtained from the 48-foot 
well are of grayish-white color and show iron stains on the surface. 
There are signs of clay at the fork of the roads in the NE. } sec. 26, 
but no systematic search has been made to ascertain whether it 
occurs in quantity or of a quality that will render it valuable. 
In the neighborhood of Sweet Home station, in sec. 25, T. 1 N., R. 
12 W., several wells are said to have passed into a white pipe clay, 
probably the white clay found in the village half a mile west of the 
station. 
"This analysis was made by Mr. W. R. Cravens under the direction of Dr. T. C. Van Nuys, pro- 
fessor of chemistry at the University of Indiana. 
