EXPERIMENT STATION. 753 



Sulphate of Potash and Magnesia (12 Analyses). 



German Potash Salts (11 Analyses) 



Moisture at 100° C, 

 Potassium oxide. 

 Sodium oxide, . 

 Calcium oxide, 

 Magnesium oxide, 

 Sulphuric acid. 

 Chlorine, . 

 Insoluble matter, 



