CONTENTS. 7 
Chapter IV. Report by counties — Continued. Page. 
Scott County 198 
General geology 198 
Clay deposits 200 
Sebastian County 200 
Clay deposits 200 
Classes of deposits 200 
Shales 200 
Pottery clays 209 
Comby's clays 210 
Glazing material 211 
Prairie clays 211 
Terrace clays 212 
Recent alluvium 213 
Clay industry ( 213 
Utilization of the clay shales 213 
Brick plants 214 
Potteries 217 
Union County 218 
General geology 218 
Clay deposits 219 
Clay industry 221 
White. County 222 
General geology 222 
Principal features 222 
Round Mountain 222 
Clay deposits 225 
Clay shales 225 
Tertiary and Quaternary clays 226 
Clay industry 228 
Woodruff County 229 
General geology 229 
Clay industry 230 
Yell County 230 
General geology 230 
Clay deposits 231 
Carboniferous clay shales 231 
Brick loam and buckshot clays 231 
Terrace clays along Arkansas River * 232 
Alluvial clays along Arkansas River 234 
Clay industry 234 
Pottery 234 
Common bricks 234 
A nalyses of clays 235 
Production 238 
List of clay workers 238 
Index 241 
