svi LIST OF TABLES. 



TABLE • PAGE 



CIV. Analysis of schoenite. (Mercker) 307 



CV. Analysis of sludge from clarification of potash salts - - 308 



CVI. GomiDositiou of Stassfurt potash salts ----- 309 



CVII. Chlorine content of crude potash salts ... - 311 



•CVIII. Effect of soluble mineral salts on grain crops - . - 313 



