20 



CONTROL SERIES NO. 158 



PHOSPHORIC ACID COMPOUNDS 



Manufacturer and Brand 



American Agricultural Chemical Co. 



AA Quality Phosphate Rock 



18% Normal Superphosphate 



Apothecaries Hall Co. 



Superphosphate 20% 



Armour Fertilizer Works 



Big Crop Superphosphate 20% 



Consolidated Rendering Co. 



Corenco Superphosphate 20% 



Davison Chemical Corp. 



Davco Granulated 20% Superphosphate 



Eastern States Farmers' Exchange, Inc. 



Superphosphate 20%; 



Farm Bureau Association 



Superphosphate 20% 



Fox Point Chemical Co. 



Old Fox Superphosphate 20% 



Goulard & Olena, Inc. 



G & O Superphosphate 20% 



International Minerals & Chemical Corp. 



Superphosphate 20% 



Old Deerfield Fertilizer Co., Inc. 



Superphosphate 20% 



Rogers & Hubbard Co. 



Hubbard Superphosphate 20% 



a Guaranteed 30% total phosphoric acid. 

 b Old stock. 



POTASH COMPOUNDS 

 Muriate of Potash 



Manufacturer 



American Agricultural Chemical Co 



Consolidated Rendering Co 



Eastern States Farmers' Exchange, Inc. . 



Farm Bureau Association 



International Minerals & Chemical Corp 



Old Deerfield Fertilizer Co., Inc 



Rogers & Hubbard Co 



