INSPECTION OF COMMERCIAL FERTILIZERS 



37 



Phosphoric Acid Compounds. 



Superphosphate, Precipitated Bone, and Basic Slag Phosphate. 



Samples Showing Commercial Shortage of More than $1 per Ton 



Berkshire Chemical Co. 



Berkshire Precipitated Bone 

 Old Deerfield Fertilizer Co., Inc. 



Old Deerfield Precipitated Bone . 

 Old Deerfield Precipitated Bone 



16 



U 

 Id 



14.88 



16.30 

 13.85 



a Guaranteed total phosphoric acid 33%: no available phosphoric acid guaranteed. 

 b Commercial shortage $4.96 per ton. 

 c Commercial shortage $2.59 per ton. 

 d Commercial shortage $1.47 per ton. 



