FERTILIZERS AND AGRICULTURAL LIME 

 PHOSPHORIC ACID COMPOUNDS 



11 



Manufacturer and Brand 



American Agricultural Chemical Co. 



18% Normal Superphosphate 



Armour Fertilizer Works 



Armour's Big Crop Superphosphate 20% 



Consolidated Rendering Co. 



Corenco Superphosphate 20% 



Davison Chemical Corp. 



Davco Granulated Superphosphate 20% 



Eastern States Farmers' Exchange, Inc. 



Eastern States Superphosphate 20% . . . 



Farm Bureau Association 



Farm Bureau Superphosphate 20%. . . . 



International Minerals & Chemical Corp. 



International Superphosphate 20% .... 



Old Deerfield Fertilizer Co., Inc. 



Old Deerfield Superphosphate 20% .... 



Rogers <& Hubbard Co. 



Hubbard's Superphosphate 20% 



Thomson Phosphate Co. 



Four Leaf Powdered Rock Phosphate. . 



Total 

 Phos- 

 phoric 

 Acid 



/18.77a 

 \18.46 



(21.066 

 120.96 



21.68 

 21.47 

 20.40 



f21.75c 

 121 .88 



21.06 

 21.17 

 31.37d 



Available 

 Phosphoric Acid 



18.31 

 18 00 



20.02 

 20.12 



20.05 

 20.73 

 20.22 



20.00 

 20.00 



20 44 

 20.11 



Guaran- 

 teed 



18.00 

 18.00 



20.00 

 20.00 



20.00 

 20.00 

 20 00 



20.00 

 20.00 



20.00 

 20.00 



a Composite of 3 samples 

 b Composite of 2 samples 

 c Composite of 7 samples 

 d Guaranteed 31% total phosphoric acid 



POTASH COMPOUNDS 

 Muriate of Potash 



Manufacturer 



Eastern States Farmers' Exchange, Inc.. 

 International Minerals & Chemical Corp 



Old Deerfield Fertilizer Co., Inc 



Rogers & Hubbard Co 



Water Soluble Potash 



Found 



61.10 

 59.80 

 60.60 

 59.30 



Guaran- 

 teed 



60.00 

 60.00 

 60.00 

 60.00 



