CRAWFORD COUNTY, 69 
Magriesia (MgO) ....." 0. 62 
Potash (K 2 0) 1. 03 
Soda (Na 2 6) 57 
Loss 5. 53 
100.31 
Sand. 
Water at 110°-115° C 2. 85 
The same class of clay is said to have been found in wells in the 
E. h N. | SW. I sec. 36, and also in a well 10 feet deep in the E. ^ 
NW. I sec. 31, T. 10 N., R. 31 W., where it is reported to be 4 feet 
thick. 
An excavation made in the SE. \ NE. \ sec. 17, T. 9 N., R. 31 W., 
by J. L. Rea, in prospecting for clay similar to that found on the 
western side of sec. 16, passed through about 10 feet of Carboniferous 
shales, but encountered no soft clay. 
In digging foundations for a house on Mrs. Moore's farm, near 
Lees Creek, in sec. 15, T. 9 N., R. 32 W., a fine white clay was dis- 
covered under the creek bottom land. On the road from Van Buren 
to Dora station there are several exposures of yellow clay, in places 
overlain by red clay. At Mrs. Moore's house and along the northern 
half of the southeast quarter of the section the red clay overlying the 
yellow has an average depth of about 2 feet. 
In the NE. \ SW. \ sec. 17, T. 9 N., R. 32 W., a well 10 feet deep 
passed through 18 inches of fine gray clay at the bottom of the well. 
In the SW. \ NE. \ sec. 30, T. 9 N., R, 31 W., the underlying clay 
is mottled, and has a thickness of 3 feet. On the east side of the hill 
on which Mr. Meyers's house is situated a stiff dark-red clay overlies 
the mottled clay. This red clay is similar in appearance and texture 
to that in the N. J SE. \ sec. 15, T. 9 N., R. 32 W. 
Near the Van Buren freight depot of the St. Louis and San Fran- 
cisco Railroad the blue and red clays rest directly upon black shale. 
In the SE. J SW. \ sec. 18 and the SW. \ NE*. \ sec. 19, T. 9 N.. 
R. 31 W., the railroad cuts expose a brown clay resting upon a mot- 
tled red and yellowish-white clay. 
Brick clays.- — At the western end of the town of Alma there is an 
area covered by a brownish brick earth showing in places a depth of 5 
to 7 feet. It lies in T. 9 N., II. 30 W., in the following sections : SW. J 
SW. I sec. 5; SE. -} SE. \ sec. 6; the greater part of E. J sec. 7; the 
west side of sec. 8; and the land extending southward to the creek in 
the SW. i NW. J sec. 17. 
In the SW. \ NW. \ sec. 17 the brownish-yellow brick earth is 
undertetin by a yellowish-blue clay, which rests upon Carboniferous 
shale. Both clays contain nodules of iron, which become more 
plentiful toward the base of the beds. 
