EXPERIMENT STATION BULLETINS. 



315 



TABLE 20. — Rate and extent of solubility of amphibole in presence of salts. Ratio of liquid to solid 1 to 

 0.75 and mixture maintained at room temperature. 



TABLE 21. — Rate and extent of solubility of biotite granite in presence of salts. Ratio of solid to liqtcid 

 1 to 0.75 and mixture maintained at room temperature. 



