INDEX, 



lAbsorption of clays 



Air shrinkage of clays 



^Alabama as a clay producing state 



Alabama clays, physical and chemical properties. 



analyses of 



combined water of. 



composition of 



geological relations of 



moisture in 



plasticity, of 



Page. 



39 



.^ 23, 26, 28 



1 



114 



52, 201 



24 



5 



8,69 



23 



25 



shrinkage of 23, 24, 27 



silica in 20 



suitable for making Portland cement 202 



Alabama Are clay 131 



" firebrick works ^ 109 



" Metamorphic rocks 70 



Alum in settling of kaolin 66 



Alumina determination 47 



'' in excess in clays 16 



Archaeafn clays " 70 



Algonkiau clays 70 



Alkalies in clays 11 



" " " (china and ball clays) 115 



'' " " determination of 45 



Analyses of bauxite, Rock Run, Cherokee Co 143, 144, 145, 146 



Analyses of clays, ultimate 45, 54, 57 



" " " rational 49,50,57 



" " " Alabamaclays 



•' " " " " suitable for Portland cement 



Analyses of clays, Bagwell's, W. D., Fayette Co 



Beckwith's, W. J., Colbert Co 



blue, from near Glen Allen 



brick, Argo, Jefferson Co 



" Birmingham, Jefferson Co 



" Woodstock, Bibb Co 



china, Anderson, P. Y., DeKalb Co 



Chalk Bluff, Marion Co 



" Eureka Mines, DeKalb Co 



" Frederick Briggs, Marion Co 



" Hughes, J. R., Gadsden 



■' nearKymulga, Talladega Co 



" Pearce's Mill, Marion Co 



123 



52 

 201 

 194 

 199 

 197 

 193 

 193 

 191 

 125 

 126 

 124 

 128 

 120 

 122 

 129 



