Geological Survey of Alabama. 



43 



2. those found at a locality in Clark County, Ala., S. 35, T. 9, R. 

 6, called ''The Rocks." 



3. Choctaw Bluff, Clarke County, Ala., the most southerly ex- 

 tension of the Tertiary on the Alabama River. 



4. St. Stephens' Bluff, on Tombigbee River. The column on the left 

 shows whether the species is in my cabinet or not. 



The massive coral is also found at Central Salt Works, Ala., where it 

 comprise* the greater part of a hill over one hundred feet high. 



