CAMBRIAN AND SILURIAN FORMATIONS. 75 



references to these may be found in the Eeport on the 

 Valley Regions. 



While none of these clay deposits have as yet found 

 a market, it may be well for the sake of completeness 

 to give a few details ■ concerning such as have been 

 recorded. The references to the pages of the report 

 on the Valley Regions, Part II, are also added. 



In connection with beds of limonirte in S. 31, T. 24, 

 R. 11 E., in Bibb county, mention is made of the fact 

 that the ore lies imbedded in clay of red or yellowish 

 red color, with streaks of a white clay (p. 495. ) 



/n Talladega county, in the flatwoods, lying -along 

 ftJie line of the Columbus & Western Railroad, in the 

 southeast corner of S. 2, T. 21, R. 3 E., a white plastic 

 clay which is said to have been penetrated to a depth 

 of 35 feet, is reported to have been struck in a well, 

 (p. 606.) In the same county in S. 19, T. 19, R.5 E., 

 in the Charlton limonite bank there is a large "horse" 

 of white clay, extensive deposits of white clay are 

 noticed in connection with other limonite banks in the 

 immediate vicinity, (p. 616.) 



In Calhoun county, in T. 15, R. 8 E., and in Sec- 

 tions 21 and 23, there are many diggings in beds of 

 limonite, and in most of them are "horses" of white 

 clay, (p. 702). Again in T. 14, R. 8 E., in the same 

 county, near Tampa, on land belonging to A. H. 

 TuUis, Section 6, in the red residual clays derived 

 from the disintegration of the limestones of the 

 county, along with barite and limonite in pockets, are 

 found some deposits of kaoliii of white color and 

 considerable thickness, up to 10 feet. In 

 Section 5 of same township and range, the kaolin is 

 exposedd in a cut of the East and West Alabama 

 Railroad where it is 10 feet thick, (p. 715.) 



