290 
FLORIDA STATE GEOLOGICAL SURVEY. 
Gray calcareous sand with slight admixture of siliceous sand.. 390 
Same gray calcareous sand with some pieces of impure light- 
colored limestone and with one calcite crystal... 400 
Same as above, gray calcareous sand, with some light-colored 
limestone ..... 425 
Light, rough limestone with fossils and typical oolite. 450 
Gray calcareous sand and light limestone..... 475 
Same gray calcareous sand with light-colored limestone. 515 
Same gray calcareous sand with fine siliceous sand. ........... 530 
Same as above ..... 540 
The sample submitted, as representing the material from 800 
to 1,010 feet, is limestone, apparently of the Vicksburg formation. 
