42 



CONTROL SERIES No. 60 



Phosphoric Acid Compounds. 



The following table gives the analyses of those fertilizer simples valued 

 chiefly for their phosphoric acid. 



Superphosphate, Precipitated Bone, Basic Slag Phosphate and Ground Phosphate Rock. 



Potash Compounds. 



The tables under this heading give the composition of those products 

 valued chiefly for their potash. 



Sulfate of Potash-Magnesia. 



