396 CONTRIBUTIONS TO ECONOMIC GEOLOGY, 1902. [bull. 213. 
yards wide and probably half a mile long could be worked. Fuller's 
earth occurs also on the land of Mr. A. J. Key, in sec. 15, T. 3 N., 
R. 4 W. ; and on the land of Mr. Elias Howell, in sec. 10, T. 3 N., 
R. 4 W., and extends along the creek about one-half mile below 
Mr. McPhaul's. 
Dr. Ries states that this earth is very similar to that on Withlacoo- 
chee Creek, 8 miles north of Quincy. Both bleached cotton-seed oil 
as well as the Sumter, S. C, material, but did not bleach crude 
petroleum quite as well as the original Quincy material. 
Near Quincy. — The following is a section through the fuller's earth 
at the Chesebrough Manufacturing Company's mine, 1 mile south of 
Quincy. 
Section of Chesebrough Manufacturing Company's mine. 
Feet. 
5. Overburden of clay and sands 7 
4. Fuller's earth (average) 4 
3. White argillaceous sandstone containing fossils 5 
2. Fuller's earth 
1 . Soft sandstone, sand, and fuller's earth 15 
It is estimated that there are about 10,000 tons to the acre. About 
2 acres have been mined, and 20,000 tons were taken out. Mr. T. L. 
Ward states that operations began in 1895, and stopped in December, 
is;)!), because the Standard Oil Company had sufficient earth on hand. 
An examination of the section at the mine of the Owl Commercial 
Company where stripping is practiced showed the following section: 
Section at mine of the <>ir/ Commercial Company. 
Feet. 
4. Overburden 5 to 20 
3. Fuller's earth ._ 6 to 10 
2. Sandstone with crystals and lumps of calcite 3 to 4 
1. Fuller's earth 5 to 6 
Fuller's earth occurs along Quincy Creek, above the preceding- 
mine, on land belonging to Mr. William Bruce, and also on the prop- 
erty of Messrs. Taussig & Wedeles. The fuller's earth here seems 
to be of good quality and about 8 feet thick; the overburden is 4 to 5 
feet, and transportation is near at hand. Analyses and tests by 
Dr. Ries follow: 
Analysis of fuller's earth from, land of Messrs. Taussig <fe Wedeles. 
Per cent. 
Silica 60. 70 
Alumina 14.10 
Ferric oxide 2. 40 
Lime 1.65 
Magnesia 2.08 
Water 9.70 
Moisture 9. 30 
Total 99.93 
Sample from the land of Taussig and Wedeles, sec. 2, T. 2 N. , R. 4 W. 
This did not bleach very well. 
