32 MINERAL RESOURCES OF ALABAMA. 



Lithographic Stone. 



A bedded limestone of the Lower Carboniferous formation 

 in Jackson county has been quarried on a very small scale, pol- 

 ished and engraved, and prints made therefrom, which are very 

 satisfactory. One of these engraved stones is in the museum 

 of the University. 



Some of the dolomites of the Knox formation in the central 

 parts of the state have also been pronounced to be fit for this 

 purpose, but they have not been subjected to the practical test 

 of actual use. 



In the Report on the Valley Regions, Parts I and II, will be 

 found other and fuller details concerning the calcareous rocks 

 just described. 



