INSPECTION OF COMMERCIAL FERTILIZERS 



39 



Phosphoric Acid Compounds. 



Superphosphate, Precipitated Bone and Basic Slag Phosphate. 



Manufacturer and Brand. 



Acme Guano Co. 



Acme 16 '"p Superphosphate .... 

 American Agricultural Chemical Co. 



AA 16% Superphosphate 



AA 16 'o Superphosphate 



AA 16% Superphosphate 



AA 20% Superphosphate 



Co-op 16 '^^0 Superphosphate .... 



Co-op 16 <^o Superphosphate .... 



Basic i-lag 



Apothecaries Hall Co. 



Superphosphate 16% 



Armour Fertilizer Works 



Armours Big Crop Superphosphate 16% 



Armours Big Crop Superphosphate 20% 

 Baugh & Sons Co. 



Baughphos The Ideal 16 % Superphosphate . 

 Berkshire Chemical Co. 



Berkshire 16% Superphosphate 



Berkshire 20-;: Superphosphate 



Berkshire Precipitated Bone Phosphate 

 Consolidated Rendering Co. 



Superphosphate 16 % 



Superphosphate 16 'o 



Eastern States Farmers' Exchange 



Eastern States 20% Superphosphate (Granular) 



Eastern States 40<Jo Double Superphosphate 



Eastern States Precipitated Bone 

 International Agricultural Corp. 



International 16% Superphosphate 



International 16 % Superphosphate 



International Basic Slag 



Old Deerfield Fertilizer Co., Inc. 



Old Deerfield 16% Superphosphate 



Old Deerfield Precipitated Bone 

 Rogers & Hubbard Co. 



Hubbard's Superphosphate .... 

 Standard Wholesale Phosphate & Acid Works 

 Inc. 



Standard 16 % Superphosphate 



16% Superphosphate Pinkerton Bell 

 Virginia-Carolina Chemical Corp. 



V-C 16 % Superphosphate .... 



C. P. Washburn Co. 



Superphosphate 16% 



Number 



of 

 Samples. 



Total 

 Phos- 

 phoric 

 Acid. 



16.34 



17.77 

 17.48 

 17.13 

 20.49 

 17.53 

 17.02 

 18.11 



17.45 



16.97 

 20.66 

 39.62 



17.14 

 16.90 



20 92 

 40.70 

 40.82 



17.07 

 17.17 

 18.06 



20.13 

 40.28 



17.02 

 16.76 



17.55 

 17.17 



a Only the total phosphoric acid was guaranteed. 



Potash Compounds. 



Sulfate of Potash-Magnesia. 



