458 GEOLOGY OF NORTHWESTERN TEXAS. 



1. Gypsum , 60 feet. 



2. Red clay 20 feet. 



3. Gypsum 20 feet. 



4. Red clay 35 feet. 



5. Gypsum 15 feet. 



6. Gypsum, alabaster 4 feet. 



Total 154 feet. 



Another section at Salt Flat, in Kent County, beginning at the bottom: 



1. Spotted red clay 3 feet. 



2. "White massive gypsum . 10 feet. 



3. Red clay 30 feet. 



4. Gypsum 1 foot. 



5. Red clay 30 feet. 



6. Gypsum 6 feet. 



1. Red clay 20 feet. 



8. Limestone 1 foot. 



Total 101 feet. 



The following section was made on the Salt Fork of the Brazos, in Kent 

 County, on section 8 and block 1 of the Houston and Texas Central Rail- 

 way surveys: 



1 . Red sandy clay 4 feet. 



2. Massive white gypsum 3 feet. 



3. Red clay, with thin seams of gypsum 10 feet. 



4. Mottled sandstone 6 feet. 



5. Red clay, with seams of mottled sandstone 20 feet. 



6. Mottled sandstone 4 feet. 



7. Red clay and mottled sandstone 5 feet. 



8. Massive white gypsum 3 feet. 



9. Red clay 10 feet. 



10. Gypsum, alabaster 1 foot. 



11. Red clay , 4 feet. 



Total 70 feet. 



The following section was made three miles northwest of the smelter, in 

 Knox County: 



1. Red clay 20 feet. 



2. White sandstone 10 feet. 



3. Red clay, with gypsum 30 feet. 



4. Massive bluish gypsum 2 feet. 



5. Red clay 20 feet. 



6. Massive white gypsum 4 feet. 



1. Red clay 20 feet. 



8. Massive gypsum 1 foot. 



9. Red clay, with seams of gypsum 30 feet. 



10. Limestone 2 feet. 



Total 139 feet. 



