INSPECTION OF COMMERCIAL FERTILIZERS 



43 



Potash Compounds. 



Sulfate of Potash-Magnesia. 



o This was not registered in Massachusetts but was supplied to the Experiment Station for ex- 

 perimental purposes. 



Muriate and High Grade Sulfate of Potash 



Brands Showing Commercial Shortage of More than $1 per Ton 



American Agricultural Chemi- 

 cal Co 



Armour Fertilizer Works 



41.54 



57.25 



50.00 

 60.00 



a This product was not registered in Massachusetts but was supplied to the Experiment Station 

 for experimental purposes. 



b Commercial shortage per ton $6.43. This was supposed to have been a 60% muriate stand- 

 ardized to fill an order for 50% muriate. 



c Commercial shortage per ton $2.09. 



