CLAYS AND FULLER'S EARTH. 
The clays of the eastern United States will be the subject of a bul- 
letin to be issued by the United States Geological Survey during the 
present year. Owing to its comprehensive character, no abstract of 
this important work has been attempted for the present publication. 
The results of recent field work by the Survey on the clays of western 
Tennessee and northwestern Mississippi, and on the fuller's-earth 
deposits of Florida and Georgia, are given in the following papers: 
STONEWARE AND BRICK CLAYS OF WESTERN TENNESSEE AND 
NORTHWESTERN MISSISSIPPI. 
Bv Edwin C. Eckel. 
INTRODUCTION. 
A preliminary report on the clay resources and industries of this 
region is here presented. Owing to the short time available for the 
field work, the writer's investigations were practically confined to an 
examination of the stoneware clays of the area. A few plants mak- 
ing common brick were visited, and notes on this industry have been 
appended. 
STONEWARE CLAYS AND MANUFACTURE. 
The stoneware clays of the region under discussion appear at the 
surface of a belt of country averaging 10 miles or more in width and 
extending from Holly Springs, Miss., through Grand Junction, Jack- 
son, and Paris, Tenn., into Kentucky. No field work was done on 
1 hese clays south of Holly Springs or north of the Kentucky-Tennessee 
line, though the clays are known to be of economic importance both 
south and north of these limits. 
The age of the clays has been discussed by Safford, Ililgard, Lough- 
ridge, Smith, and McGee, the principal question at issue being whether 
or not they are to be included in the Lafayette. While the work of 
the present writer can not be regarded as conclusive, certain facts of 
interest have been developed. As described by McGee, the series 
shown in this area, from the top downward, is as follows: 
1. Columbia brown loam. 
2. Lafayette orange sands. 
3. Lafayette (stoneware) clays. 
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