25 



Superphosphate (Acid Phosphate), Precipitated Bone 

 Basic Slag Phosphate, Etc. 



Brands Substantially Meeting their Guarantees. 



1 Two analyses made. 



2 Phosphoric acid soluble in neutral citrate of ammonia, 2.22 per cent. 



3 The slag contained 38.17 per cent of calcium oxide, of which 5.92 per cent was in active forms to neu- 

 traUze soil acidity. There were also present 2.53 per cent magnesium oxide, 23.50 per cent iron oxide, 

 1.10 per cent manganese dioxide. 



Potash Compounds. 



The tables under this heading show the chemical analyses of those salts valued 

 chiefly for their potash. 



Muriate and High Grade Sulfate of Potash. 



Brands Substantially Meeting their Guarantees. 



1 Two analyses made. 



