i ( 



1895.] NATURAL, SCIENCES OF PHILADELPHIA. 139 



1. Surface soil and gray and brown sand ... 25 feet. 



2. Alternate strata of blue clay and calcareous 



sandstone 42 " 



3. Brown coal 2 " 



4. Bluisb-gray sand, blue clay and calcareous 



sandstones 46 " 



5. Brown coal 1$ " 



6. Bluish gray sand 23 s" 



7. Brown coal 5 " 



8. Blue sands and sandstones 55 feet. 



9. Brown coal 2 " 



10. Red clay 8 " 



11. Bluish-gray calcareous sandstones and blue 



clay 22 " 



12. Brown coal 2 " 



13. Blue sand 76 



14. Brown coal 10 



15. Blue sand with thin seams of sandstone . . 265 " 



A well at Franklin, the county seat of Robertson, obtains its water 

 supply from these beds and is 1,208 feet deep. This boring is wholly 

 in lignitic strata and chiefly in the lower division. 



While there is no doubt whatever as to the stratigraphic position 

 of the Texas Lignitic corresponding closely to that of the Lignitic of 

 Alabama, both occupying positions beneath the Lower Claiborne 

 and overlying tbe uppermost beds of the Cretaceous, there are many 

 conditions of dissimilarity between them that mark the deposition of 

 each to have been associated with and made under widely different 

 circumstances. Nor do these Texas beds altogether correspond with 

 the Lignitic of Mississippi, Arkansas or Louisiana, although in the 

 case of the two last named States the beds found in the southwestern 

 portion of Arkansas and in the northwestern corner of Louisiana are 

 similar in every respect to those of that portion of Texas adjoining 

 them. 



In Alabama the greater portion of this sub-division is made up of 

 laminated clays and laminated and cross-bedded sands of a prevailing 

 gray color, except immediately below the Buhrstoue, where for 200 

 feet or more they are of dark brown, often purplish colors. With 

 the above mentioned laminated clays and sands are interstratified 



