CRETACEOUS FORMATION. 105 



find twenty feet of white sand with two feet of white 

 clay, and below this a blue plastic clay extending be- 

 low the railroad track. 



This sand has been shipped to Memphis as mould- 

 ing sand for the foundry. At Glen Allen, Dr. Little 

 gives this section : 



Section at Glen Allen, Marion Co. 



Brown clay 12 feet 



Yellow sand 12 feet 



White pipe clay 2 feet 



Two miles east of Guin, on the same road, Dr. Little 

 observes five feet of clay below a capping of red sand, 

 and one mile west of Guin, (six miles from Beaver- 

 ton ) he gives the following section : 



Section near Gwin, Marion Co. 



Cross-bedded yellow sands 10 feet 



Clay 4 feet 



Sand 3 feet 



Banded clay 3 feet 



Sand 3 feet 



On the South Fork of Buttahatchie in the vicinity 

 of Pearce's Mill, there are several occurrences of clay 

 and shale worth consideration. D~. Hies collected 

 specimens from near the mill and gives his analyses 

 of two samples under No. 1 and No. 2, both of which 

 he classes as refractory or fire-clays. He also gives 

 his tests of some shales of the Carboniferous forma- 

 tion, which are well adapted to the manufacture of 

 vitrified brick (No. 3). Another sample of hard and 

 perfectly white clay was collected by Dr. Little from 

 near t'he top of a hill one-fourth of a mile east of the 

 mill. This Dr. Eies has analyzed under No. 36, S., 

 and it is classed by him as a china clay. Dr. Little 

 reports that, in pulverized condition, it is used as a 

 face powder by the ladies in the vicinity. 



