PULASKI COUNTY. 169 
Prof. W. B. Potter, of St. Louis. A copy of the analysis was kindly 
furnished by Mr. Norris. 
Analyses of " soapstone" clay, from well of A. W. Norris, NW. £ NE. \ sec. 10, T. 1 S., 
R. 13 W. 
Silica (Si0 2 ) 
Alumina (A1 2 3 ) 
Oxide of iron (Fe 2 3 ) . . 
Lime (CaO) 
Magnesia (MgO) 
Potash (K 2 0) 
Soda (Na 2 0) 
Loss on ignition (H 2 0). 
Water lost at 110°-115° C. 
No sand. 
65.27 
60.79 
18.75 
19.73 
7.34 
5.94 
.81 
.37 
1.26 
.72 
1.10 
.81 
} 
1.93 
6.88 
10.77 
100,22 
100. 25 
9.46 
This clay is convenient to transportation and well adapted to the 
manufacture of paving bricks, sewer pipes, and probably fire bricks. 
The beds are horizontal, and at points where the surface is somewhat 
lower than at Mr. Norris' s can be reached without much stripping. 
The following sections of wells in the vicinity of Mabelvale, al- 
though evidently imperfect and unsatisfactory, are given for what 
they are worth. All references here are to T. 1 S., R. 13 W. 
V. L. Cochrane, in the SW. i NW. \ sec. 11, reports "17 feet of 
fire clay and red clay." The so-called fire clay is possibly the same 
as the buff clay in Mr. Norris's well. 
Mr. Rowland, on the NW. \ SW. \ sec. 11, reports "22 feet of fire 
clay and red clay." This section without doubt exposes the same 
beds as does that given by Mr. Cochrane near the blacksmith shop. 
Mr. Rowland also reports, from the SW. \ NW. \ sec. 11, "13 feet 
of fire clay and yellow clay, with from 2 to 4 inches of ferruginous 
sandstone interbedded." 
Mr. S. E. Emerson, in the NE. \ NE. \ sec. 11, reports the follow- 
ing well section: 
Section of well in NE. i~ NE. \ sec. 11, T. 1 S., R. IS W. 
Feet. 
Red clay 3| 
Gray ' ' fire clay and black clay " 20 
Gray clay 18 
These gray clays and so-called fire clays are probably the same as 
the buff clays passed through in Mr. Norris's well. If this supposition 
is correct, these sections show that the buff clay is a widespread bed, 
underlying all the higher grounds east and southeast of Mabelvale, 
and probably a much wider area still, while it is cut out in the low 
grounds along the streams. Should there be a demand for these clays 
they will be found most accessible in sec. 3 and on the lower grounds 
about the bases of the ridges, where they are not obscured by a cov- 
ering of gravel and sand and soil. 
